[FEATURE ember-glimmer-angle-bracket-built-ins]

Implement `<TextArea />` typo guard.

Author: chancancode

packages/@ember/-internals/glimmer/lib/resolver.ts

@@ -139,6 +139,12 @@ export default class RuntimeResolver implements IRuntimeResolver<OwnedTemplateMe
   lookupComponentHandle(name: string, meta: OwnedTemplateMeta) {
     let nextHandle = this.handles.length;
     let handle = this.handle(this._lookupComponentDefinition(name, meta));
+
+    assert(
+      'Could not find component `<TextArea />` (did you mean `<Textarea />`?)',
+      !(EMBER_GLIMMER_ANGLE_BRACKET_BUILT_INS && name === 'text-area' && handle === null)
+    );
+
     if (nextHandle === handle) {
       this.componentDefinitionCount++;
     }

packages/@ember/-internals/glimmer/tests/integration/components/textarea-angle-test.js

@@ -83,6 +83,12 @@ if (EMBER_GLIMMER_ANGLE_BRACKET_BUILT_INS) {
   moduleFor(
     'Components test: <Textarea>',
     class extends TextAreaRenderingTest {
+      ['@test Should catch <TextArea />` typo']() {
+        expectAssertion(() => {
+          this.render('<TextArea />');
+        }, 'Could not find component `<TextArea />` (did you mean `<Textarea />`?)');
+      }
+
       ['@test Should insert a <textarea>'](assert) {
         this.render('<Textarea />');