diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty10.ts b/tests/cases/conformance/es6/Symbols/symbolProperty10.ts
new file mode 100644
index 0000000000000..0f63356eaf686
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty10.ts
@@ -0,0 +1,11 @@
+//@target: ES6
+class C {
+    [Symbol.iterator]: { x; y };
+}
+interface I {
+    [Symbol.iterator]?: { x };
+}
+
+var i: I;
+i = new C;
+var c: C = i;
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty11.ts b/tests/cases/conformance/es6/Symbols/symbolProperty11.ts
new file mode 100644
index 0000000000000..1377970613ddf
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty11.ts
@@ -0,0 +1,9 @@
+//@target: ES6
+class C { }
+interface I {
+    [Symbol.iterator]?: { x };
+}
+
+var i: I;
+i = new C;
+var c: C = i;
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty12.ts b/tests/cases/conformance/es6/Symbols/symbolProperty12.ts
new file mode 100644
index 0000000000000..5a835a34b629f
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty12.ts
@@ -0,0 +1,11 @@
+//@target: ES6
+class C {
+    private [Symbol.iterator]: { x };
+}
+interface I {
+    [Symbol.iterator]: { x };
+}
+
+var i: I;
+i = new C;
+var c: C = i;
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty13.ts b/tests/cases/conformance/es6/Symbols/symbolProperty13.ts
new file mode 100644
index 0000000000000..4b5023e1d0655
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty13.ts
@@ -0,0 +1,17 @@
+//@target: ES6
+class C {
+    [Symbol.iterator]: { x; y };
+}
+interface I {
+    [Symbol.iterator]: { x };
+}
+
+declare function foo(i: I): I;
+declare function foo(a: any): any;
+
+declare function bar(i: C): C;
+declare function bar(a: any): any;
+
+foo(new C);
+var i: I;
+bar(i);
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty14.ts b/tests/cases/conformance/es6/Symbols/symbolProperty14.ts
new file mode 100644
index 0000000000000..0109ec3be251e
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty14.ts
@@ -0,0 +1,17 @@
+//@target: ES6
+class C {
+    [Symbol.iterator]: { x; y };
+}
+interface I {
+    [Symbol.iterator]?: { x };
+}
+
+declare function foo(i: I): I;
+declare function foo(a: any): any;
+
+declare function bar(i: C): C;
+declare function bar(a: any): any;
+
+foo(new C);
+var i: I;
+bar(i);
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty15.ts b/tests/cases/conformance/es6/Symbols/symbolProperty15.ts
new file mode 100644
index 0000000000000..3ec6c6ecc7a9a
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty15.ts
@@ -0,0 +1,15 @@
+//@target: ES6
+class C { }
+interface I {
+    [Symbol.iterator]?: { x };
+}
+
+declare function foo(i: I): I;
+declare function foo(a: any): any;
+
+declare function bar(i: C): C;
+declare function bar(a: any): any;
+
+foo(new C);
+var i: I;
+bar(i);
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty16.ts b/tests/cases/conformance/es6/Symbols/symbolProperty16.ts
new file mode 100644
index 0000000000000..2b3a976df9883
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty16.ts
@@ -0,0 +1,17 @@
+//@target: ES6
+class C {
+    private [Symbol.iterator]: { x };
+}
+interface I {
+    [Symbol.iterator]: { x };
+}
+
+declare function foo(i: I): I;
+declare function foo(a: any): any;
+
+declare function bar(i: C): C;
+declare function bar(a: any): any;
+
+foo(new C);
+var i: I;
+bar(i);
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty17.ts b/tests/cases/conformance/es6/Symbols/symbolProperty17.ts
new file mode 100644
index 0000000000000..450fbb70dd6a4
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty17.ts
@@ -0,0 +1,9 @@
+//@target: ES6
+interface I {
+    [Symbol.iterator]: number;
+    [s: Symbol]: string;
+    "__@iterator": string;
+}
+
+var i: I;
+var it = i[Symbol.iterator];
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty18.ts b/tests/cases/conformance/es6/Symbols/symbolProperty18.ts
new file mode 100644
index 0000000000000..2fabea34960f0
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty18.ts
@@ -0,0 +1,10 @@
+//@target: ES6
+var i = {
+    [Symbol.iterator]: 0,
+    [Symbol.toStringTag]() { return "" },
+    set [Symbol.toPrimitive](p: boolean) { }
+}
+
+var it = i[Symbol.iterator];
+var str = i[Symbol.toStringTag]();
+i[Symbol.toPrimitive] = false;
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty19.ts b/tests/cases/conformance/es6/Symbols/symbolProperty19.ts
new file mode 100644
index 0000000000000..df9b99f5ca427
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty19.ts
@@ -0,0 +1,8 @@
+//@target: ES6
+var i = {
+    [Symbol.iterator]: { p: null },
+    [Symbol.toStringTag]() { return { p: undefined }; }
+}
+
+var it = i[Symbol.iterator];
+var str = i[Symbol.toStringTag]();
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty20.ts b/tests/cases/conformance/es6/Symbols/symbolProperty20.ts
new file mode 100644
index 0000000000000..7180ceec87dbe
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty20.ts
@@ -0,0 +1,10 @@
+//@target: ES6
+interface I {
+    [Symbol.iterator]: (s: string) => string;
+    [Symbol.toStringTag](s: number): number;
+}
+
+var i: I = {
+    [Symbol.iterator]: s => s,
+    [Symbol.toStringTag](n) { return n; }
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty21.ts b/tests/cases/conformance/es6/Symbols/symbolProperty21.ts
new file mode 100644
index 0000000000000..52e84a004254a
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty21.ts
@@ -0,0 +1,13 @@
+//@target: ES6
+interface I<T, U> {
+    [Symbol.unscopables]: T;
+    [Symbol.isConcatSpreadable]: U;
+}
+
+declare function foo<T, U>(p: I<T, U>): { t: T; u: U };
+
+foo({
+    [Symbol.isConcatSpreadable]: "",
+    [Symbol.isRegExp]: 0,
+    [Symbol.unscopables]: true
+});
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty22.ts b/tests/cases/conformance/es6/Symbols/symbolProperty22.ts
new file mode 100644
index 0000000000000..a0eec6dd471ae
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty22.ts
@@ -0,0 +1,8 @@
+//@target: ES6
+interface I<T, U> {
+    [Symbol.unscopables](x: T): U;
+}
+
+declare function foo<T, U>(p1: T, p2: I<T, U>): U;
+
+foo("", { [Symbol.unscopables]: s => s.length });
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty23.ts b/tests/cases/conformance/es6/Symbols/symbolProperty23.ts
new file mode 100644
index 0000000000000..6d8a210872032
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty23.ts
@@ -0,0 +1,10 @@
+//@target: ES6
+interface I {
+    [Symbol.toPrimitive]: () => boolean;
+}
+
+class C implements I {
+    [Symbol.toPrimitive]() {
+        return true;
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty24.ts b/tests/cases/conformance/es6/Symbols/symbolProperty24.ts
new file mode 100644
index 0000000000000..8e1c35879ab5e
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty24.ts
@@ -0,0 +1,10 @@
+//@target: ES6
+interface I {
+    [Symbol.toPrimitive]: () => boolean;
+}
+
+class C implements I {
+    [Symbol.toPrimitive]() {
+        return "";
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty25.ts b/tests/cases/conformance/es6/Symbols/symbolProperty25.ts
new file mode 100644
index 0000000000000..ee5711749333c
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty25.ts
@@ -0,0 +1,10 @@
+//@target: ES6
+interface I {
+    [Symbol.toPrimitive]: () => boolean;
+}
+
+class C implements I {
+    [Symbol.toStringTag]() {
+        return "";
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty26.ts b/tests/cases/conformance/es6/Symbols/symbolProperty26.ts
new file mode 100644
index 0000000000000..88b7d168d648f
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty26.ts
@@ -0,0 +1,12 @@
+//@target: ES6
+class C1 {
+    [Symbol.toStringTag]() {
+        return "";
+    }
+}
+
+class C2 extends C1 {
+    [Symbol.toStringTag]() {
+        return "";
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty27.ts b/tests/cases/conformance/es6/Symbols/symbolProperty27.ts
new file mode 100644
index 0000000000000..c6283595575e1
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty27.ts
@@ -0,0 +1,12 @@
+//@target: ES6
+class C1 {
+    [Symbol.toStringTag]() {
+        return {};
+    }
+}
+
+class C2 extends C1 {
+    [Symbol.toStringTag]() {
+        return "";
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty28.ts b/tests/cases/conformance/es6/Symbols/symbolProperty28.ts
new file mode 100644
index 0000000000000..7f68444a75e7c
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty28.ts
@@ -0,0 +1,11 @@
+//@target: ES6
+class C1 {
+    [Symbol.toStringTag]() {
+        return { x: "" };
+    }
+}
+
+class C2 extends C1 { }
+
+var c: C2;
+var obj = c[Symbol.toStringTag]().x;
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty29.ts b/tests/cases/conformance/es6/Symbols/symbolProperty29.ts
new file mode 100644
index 0000000000000..43701b715f98d
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty29.ts
@@ -0,0 +1,7 @@
+//@target: ES6
+class C1 {
+    [Symbol.toStringTag]() {
+        return { x: "" };
+    }
+    [s: Symbol]: () => { x: string };
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty30.ts b/tests/cases/conformance/es6/Symbols/symbolProperty30.ts
new file mode 100644
index 0000000000000..e2460604a874a
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty30.ts
@@ -0,0 +1,7 @@
+//@target: ES6
+class C1 {
+    [Symbol.toStringTag]() {
+        return { x: "" };
+    }
+    [s: Symbol]: () => { x: number };
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty31.ts b/tests/cases/conformance/es6/Symbols/symbolProperty31.ts
new file mode 100644
index 0000000000000..6d39675bf5291
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty31.ts
@@ -0,0 +1,9 @@
+//@target: ES6
+class C1 {
+    [Symbol.toStringTag]() {
+        return { x: "" };
+    }
+}
+class C2 extends C1 {
+    [s: Symbol]: () => { x: string };
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty32.ts b/tests/cases/conformance/es6/Symbols/symbolProperty32.ts
new file mode 100644
index 0000000000000..873187ff61405
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty32.ts
@@ -0,0 +1,9 @@
+//@target: ES6
+class C1 {
+    [Symbol.toStringTag]() {
+        return { x: "" };
+    }
+}
+class C2 extends C1 {
+    [s: Symbol]: () => { x: number };
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty33.ts b/tests/cases/conformance/es6/Symbols/symbolProperty33.ts
new file mode 100644
index 0000000000000..12669f89d6f97
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty33.ts
@@ -0,0 +1,9 @@
+//@target: ES6
+class C1 extends C2 {
+    [Symbol.toStringTag]() {
+        return { x: "" };
+    }
+}
+class C2 {
+    [s: Symbol]: () => { x: string };
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty34.ts b/tests/cases/conformance/es6/Symbols/symbolProperty34.ts
new file mode 100644
index 0000000000000..5d41b87002d7a
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty34.ts
@@ -0,0 +1,9 @@
+//@target: ES6
+class C1 extends C2 {
+    [Symbol.toStringTag]() {
+        return { x: "" };
+    }
+}
+class C2 {
+    [s: Symbol]: () => { x: number };
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty35.ts b/tests/cases/conformance/es6/Symbols/symbolProperty35.ts
new file mode 100644
index 0000000000000..2d9527e2fd46b
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty35.ts
@@ -0,0 +1,9 @@
+//@target: ES6
+interface I1 {
+    [Symbol.toStringTag](): { x: string }
+}
+interface I2 {
+    [Symbol.toStringTag](): { x: number }
+}
+
+interface I3 extends I1, I2 { }
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty36.ts b/tests/cases/conformance/es6/Symbols/symbolProperty36.ts
new file mode 100644
index 0000000000000..709ea39cd5dfa
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty36.ts
@@ -0,0 +1,5 @@
+//@target: ES6
+var x = {
+    [Symbol.isConcatSpreadable]: 0,
+    [Symbol.isConcatSpreadable]: 1
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty37.ts b/tests/cases/conformance/es6/Symbols/symbolProperty37.ts
new file mode 100644
index 0000000000000..7a6c86a7beaa8
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty37.ts
@@ -0,0 +1,5 @@
+//@target: ES6
+interface I {
+    [Symbol.isConcatSpreadable]: string;
+    [Symbol.isConcatSpreadable]: string;
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty38.ts b/tests/cases/conformance/es6/Symbols/symbolProperty38.ts
new file mode 100644
index 0000000000000..c8683344edcc9
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty38.ts
@@ -0,0 +1,7 @@
+//@target: ES6
+interface I {
+    [Symbol.isConcatSpreadable]: string;
+}
+interface I {
+    [Symbol.isConcatSpreadable]: string;
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty39.ts b/tests/cases/conformance/es6/Symbols/symbolProperty39.ts
new file mode 100644
index 0000000000000..af3a95eb155ab
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty39.ts
@@ -0,0 +1,11 @@
+//@target: ES6
+class C {
+    [Symbol.iterator](x: string): string;
+    [Symbol.iterator](x: number): number;
+    [Symbol.iterator](x: any) {
+        return undefined;
+    }
+    [Symbol.iterator](x: any) {
+        return undefined;
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty40.ts b/tests/cases/conformance/es6/Symbols/symbolProperty40.ts
new file mode 100644
index 0000000000000..91fd953a4d77a
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty40.ts
@@ -0,0 +1,12 @@
+//@target: ES6
+class C {
+    [Symbol.iterator](x: string): string;
+    [Symbol.iterator](x: number): number;
+    [Symbol.iterator](x: any) {
+        return undefined;
+    }
+}
+
+var c = new C;
+c[Symbol.iterator]("");
+c[Symbol.iterator](0);
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty41.ts b/tests/cases/conformance/es6/Symbols/symbolProperty41.ts
new file mode 100644
index 0000000000000..9c9583264cd7f
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty41.ts
@@ -0,0 +1,12 @@
+//@target: ES6
+class C {
+    [Symbol.iterator](x: string): { x: string };
+    [Symbol.iterator](x: "hello"): { x: string; hello: string };
+    [Symbol.iterator](x: any) {
+        return undefined;
+    }
+}
+
+var c = new C;
+c[Symbol.iterator]("");
+c[Symbol.iterator]("hello");
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty42.ts b/tests/cases/conformance/es6/Symbols/symbolProperty42.ts
new file mode 100644
index 0000000000000..79fbce7bb90cd
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty42.ts
@@ -0,0 +1,8 @@
+//@target: ES6
+class C {
+    [Symbol.iterator](x: string): string;
+    static [Symbol.iterator](x: number): number;
+    [Symbol.iterator](x: any) {
+        return undefined;
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty43.ts b/tests/cases/conformance/es6/Symbols/symbolProperty43.ts
new file mode 100644
index 0000000000000..c524b6423a537
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty43.ts
@@ -0,0 +1,5 @@
+//@target: ES6
+class C {
+    [Symbol.iterator](x: string): string;
+    [Symbol.iterator](x: number): number;
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty44.ts b/tests/cases/conformance/es6/Symbols/symbolProperty44.ts
new file mode 100644
index 0000000000000..a6281592605d6
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty44.ts
@@ -0,0 +1,9 @@
+//@target: ES6
+class C {
+    get [Symbol.hasInstance]() {
+        return "";
+    }
+    get [Symbol.hasInstance]() {
+        return "";
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty45.ts b/tests/cases/conformance/es6/Symbols/symbolProperty45.ts
new file mode 100644
index 0000000000000..cfdcc31764608
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty45.ts
@@ -0,0 +1,9 @@
+//@target: ES6
+class C {
+    get [Symbol.hasInstance]() {
+        return "";
+    }
+    get [Symbol.toPrimitive]() {
+        return "";
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty46.ts b/tests/cases/conformance/es6/Symbols/symbolProperty46.ts
new file mode 100644
index 0000000000000..84ce050ac1c48
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty46.ts
@@ -0,0 +1,12 @@
+//@target: ES6
+class C {
+    get [Symbol.hasInstance]() {
+        return "";
+    }
+    // Should take a string
+    set [Symbol.hasInstance](x) {
+    }
+}
+
+(new C)[Symbol.hasInstance] = 0;
+(new C)[Symbol.hasInstance] = "";
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty47.ts b/tests/cases/conformance/es6/Symbols/symbolProperty47.ts
new file mode 100644
index 0000000000000..05e46aaee75c0
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty47.ts
@@ -0,0 +1,12 @@
+//@target: ES6
+class C {
+    get [Symbol.hasInstance]() {
+        return "";
+    }
+    // Should take a string
+    set [Symbol.hasInstance](x: number) {
+    }
+}
+
+(new C)[Symbol.hasInstance] = 0;
+(new C)[Symbol.hasInstance] = "";
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty48.ts b/tests/cases/conformance/es6/Symbols/symbolProperty48.ts
new file mode 100644
index 0000000000000..77ce9303b4425
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty48.ts
@@ -0,0 +1,8 @@
+//@target: ES6
+module M {
+    var Symbol;
+
+    class C {
+        [Symbol.iterator]() { }
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty49.ts b/tests/cases/conformance/es6/Symbols/symbolProperty49.ts
new file mode 100644
index 0000000000000..bc34e146f2c2e
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty49.ts
@@ -0,0 +1,8 @@
+//@target: ES6
+module M {
+    export var Symbol;
+
+    class C {
+        [Symbol.iterator]() { }
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty50.ts b/tests/cases/conformance/es6/Symbols/symbolProperty50.ts
new file mode 100644
index 0000000000000..8bcf25fab2906
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty50.ts
@@ -0,0 +1,8 @@
+//@target: ES6
+module M {
+    interface Symbol { }
+
+    class C {
+        [Symbol.iterator]() { }
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty51.ts b/tests/cases/conformance/es6/Symbols/symbolProperty51.ts
new file mode 100644
index 0000000000000..3da5d45bf8403
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty51.ts
@@ -0,0 +1,8 @@
+//@target: ES6
+module M {
+    module Symbol { }
+
+    class C {
+        [Symbol.iterator]() { }
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty52.ts b/tests/cases/conformance/es6/Symbols/symbolProperty52.ts
new file mode 100644
index 0000000000000..324278ea8048b
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty52.ts
@@ -0,0 +1,6 @@
+//@target: ES6
+var obj = {
+    [Symbol.nonsense]: 0
+};
+
+obj = {};
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty53.ts b/tests/cases/conformance/es6/Symbols/symbolProperty53.ts
new file mode 100644
index 0000000000000..04cdf21a67e2f
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty53.ts
@@ -0,0 +1,4 @@
+//@target: ES6
+var obj = {
+    [Symbol.for]: 0
+};
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty54.ts b/tests/cases/conformance/es6/Symbols/symbolProperty54.ts
new file mode 100644
index 0000000000000..b3eab2a54a154
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty54.ts
@@ -0,0 +1,4 @@
+//@target: ES6
+var obj = {
+    [Symbol.prototype]: 0
+};
\ No newline at end of file
diff --git a/tests/cases/conformance/es6/Symbols/symbolProperty9.ts b/tests/cases/conformance/es6/Symbols/symbolProperty9.ts
new file mode 100644
index 0000000000000..33ffcb5ee2501
--- /dev/null
+++ b/tests/cases/conformance/es6/Symbols/symbolProperty9.ts
@@ -0,0 +1,11 @@
+//@target: ES6
+class C {
+    [Symbol.iterator]: { x; y };
+}
+interface I {
+    [Symbol.iterator]: { x };
+}
+
+var i: I;
+i = new C;
+var c: C = i;
\ No newline at end of file