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/core/test/debug/debug_node_spec.ts

@@ -141,10 +141,13 @@ class LocalsComp {
  `
 })
 class BankAccount {
-  @Input() bank: string;
-  @Input('account') id: string;
+  // TODO(issue/24571): remove '!'.
+  @Input() bank !: string;
+  // TODO(issue/24571): remove '!'.
+  @Input('account') id !: string;
 
-  normalizedBankName: string;
+  // TODO(issue/24571): remove '!'.
+  normalizedBankName !: string;
 }
 
 @Component({