fix(ivy): evaluate non existing property access as undefined (#30738)

Closes #30726

PR Close #30738

packages/compiler-cli/src/ngtsc/partial_evaluator/src/interpreter.ts

@@ -329,7 +329,7 @@ export class StaticInterpreter {
       if (lhs.has(strIndex)) {
         return lhs.get(strIndex) !;
       } else {
-        throw new Error(`Invalid map access: [${Array.from(lhs.keys())}] dot ${rhs}`);
+        return undefined;
       }
     } else if (Array.isArray(lhs)) {
       if (rhs === 'length') {

packages/compiler-cli/src/ngtsc/partial_evaluator/test/evaluator_spec.ts

@@ -39,6 +39,9 @@ describe('ngtsc metadata', () => {
   it('map access works',
      () => { expect(evaluate('const obj = {a: "test"};', 'obj.a')).toEqual('test'); });
 
+  it('resolves undefined property access',
+     () => { expect(evaluate('const obj: any = {}', 'obj.bar')).toEqual(undefined); });
+
   it('function calls work', () => {
     expect(evaluate(`function foo(bar) { return bar; }`, 'foo("test")')).toEqual('test');
   });