Fix: 'this' is undefined

src/parser/transforms.js

@@ -437,6 +437,7 @@ module.exports.convertAst = function convertAst(result, preprocessedResult, visi
         * it's NOT a standard html tag, it should have a referenced variable
       */
       if (
+        n.name !== 'this' &&
         !n.name.startsWith(':') &&
         scope &&
         (variable ||

test-projects/gts/src/await.gts

@@ -0,0 +1,49 @@
+import Component from '@glimmer/component';
+import { tracked } from '@glimmer/tracking';
+import { isDestroyed, isDestroying } from '@ember/destroyable';
+import { waitForPromise } from '@ember/test-waiters';
+
+import type { ComponentLike } from '@glint/template';
+
+interface Args {
+  promise: Promise<ComponentLike | undefined>;
+}
+
+export class Await extends Component<Args> {
+  @tracked resolved?: ComponentLike;
+  @tracked error?: Error;
+
+  constructor(owner: unknown, args: Args) {
+    super(owner, args);
+
+    let promise = args.promise
+      .then((resolved) => {
+        if (isDestroying(this) || isDestroyed(this)) return;
+
+        this.resolved = resolved;
+      })
+      .catch((error) => {
+        if (isDestroying(this) || isDestroyed(this)) return;
+
+        this.error = error;
+        this.resolved = undefined;
+      });
+
+    waitForPromise(promise);
+  }
+
+  get isPending() {
+    return !this.resolved;
+  }
+
+  <template>
+    {{#if this.error}}
+      Error:
+      {{this.error.toString}}
+    {{else if this.isPending}}
+      Building...
+    {{else}}
+      <this.resolved />
+    {{/if}}
+  </template>
+}