cl: processPkg check runtimeTypes for generic method

cl/_testrt/tpabi/out.ll

@@ -152,10 +152,6 @@ _llgo_2:                                          ; preds = %_llgo_0
   unreachable
 }
 
-declare void @"github.com/goplus/llgo/internal/runtime.init"()
-
-declare ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr, i64)
-
 define linkonce void @"main.T[string,int].Info"(%"main.T[string,int]" %0) {
 _llgo_0:
   %1 = alloca %"main.T[string,int]", align 8
@@ -192,6 +188,10 @@ _llgo_0:
   ret void
 }
 
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr, i64)
+
 define void @"main.init$after"() {
 _llgo_0:
   %0 = call ptr @"github.com/goplus/llgo/internal/runtime.NewNamed"(i64 25, i64 24, i64 1, i64 2)

cl/_testrt/tpmethod/in.go

@@ -0,0 +1,37 @@
+package main
+
+type Tuple[T any] struct {
+	v T
+}
+
+func (t Tuple[T]) Get() T {
+	return t.v
+}
+
+type Future[T any] interface {
+	Then(func(T))
+}
+
+type future[T any] struct {
+	fn func(func(T))
+}
+
+func (f *future[T]) Then(callback func(T)) {
+	f.fn(callback)
+}
+
+func Async[T any](fn func(func(T))) Future[T] {
+	return &future[T]{fn: fn}
+}
+
+func ReadFile(fileName string) Future[Tuple[error]] {
+	return Async[Tuple[error]](func(resolve func(Tuple[error])) {
+		resolve(Tuple[error]{v: nil})
+	})
+}
+
+func main() {
+	ReadFile("foo.txt").Then(func(v Tuple[error]) {
+		println(v.Get())
+	})
+}