feat(elements): injector create (#22413)

PR Close #22413

packages/compiler/test/schema/schema_extractor.ts

@@ -205,6 +205,13 @@ function extractProperties(
 function extractName(type: Function): string|null {
   let name = type['name'];
 
+  // The polyfill @webcomponents/custom-element/src/native-shim.js overrides the
+  // window.HTMLElement and does not have the name property. Check if this is the
+  // case and if so, set the name manually.
+  if (name === '' && type === HTMLElement) {
+    name = 'HTMLElement';
+  }
+
   switch (name) {
     // see https://www.w3.org/TR/html5/index.html
     // TODO(vicb): generate this map from all the element types