test(ivy): mark unknown binding test modifiedInIvy (#28740)

This commit turns off an unknown binding test that is specific
to the View Engine implementation. In Ivy, we do property validation
at runtime for jit, so this test does not apply.

PR Close #28740

packages/core/test/linker/source_map_integration_node_only_spec.ts

@@ -261,7 +261,7 @@ describe('jit source mapping', () => {
          }));
 
 
-      fixmeIvy('FW-511: Report template typing errors')
+      modifiedInIvy('Unknown binding errors have been moved to runtime in Ivy')
           .it('should use the right source url in template parse errors', fakeAsync(() => {
                 const template = '<div>\n  <div unknown="{{ctxProp}}"></div>';
                 @Component({...templateDecorator(template)})