build(bazel): Turning on strictPropertyInitialization for Angular. (#24572)

All errors for existing fields have been detected and suppressed with a
`!` assertion.

Issue/24571 is tracking proper clean up of those instances.

One-line change required in ivy/compilation.ts, because it appears that
the new syntax causes tsickle emitted node to no longer track their
original sourceFiles.

PR Close #24572

packages/compiler-cli/src/ngtsc/transform/src/compilation.ts

@@ -120,7 +120,7 @@ export class IvyCompilation {
 
     // Look up the .d.ts transformer for the input file and record that a field was generated,
     // which will allow the .d.ts to be transformed later.
-    const fileName = node.getSourceFile().fileName;
+    const fileName = original.getSourceFile().fileName;
     const dtsTransformer = this.getDtsTransformer(fileName);
     dtsTransformer.recordStaticField(reflectNameOfDeclaration(node) !, res);