Add test cases for PseudoStaticLifecycleDiagnostic

playground/web/pseudo_static_lifecycle.dart

@@ -0,0 +1,40 @@
+import 'package:over_react/over_react.dart';
+
+part 'dom_prop_types.over_react.g.dart';
+
+UiFactory<HammerTimeProps> HammerTime =
+    // ignore: undefined_identifier
+    _$HammerTime;
+
+mixin HammerTimeProps on UiProps {
+  String somethingThatCanBeTouched;
+}
+
+mixin HammerTimeState on UiState {}
+
+class HammerTimeComponent extends UiStatefulComponent2<HammerTimeProps, HammerTimeState> {
+  final mcHammer = 'cant touch this';
+
+  @override
+  get defaultProps {
+    return newProps()
+      ..somethingThatCanBeTouched = mcHammer;
+  }
+
+  @override
+  getDerivedStateFromProps(Map nextProps, Map prevState) {
+    final tNextProps = typedPropsFactory(nextProps);
+    final tNextPropsJs = typedPropsFactoryJs(nextProps);
+    final tPrevState = typedStateFactory(prevState);
+    final tPrevStateJs = typedStateFactoryJs(prevState);
+
+    if (props.somethingThatCanBeTouched == mcHammer) {
+      return newState();
+    }
+
+    return null;
+  }
+
+  @override
+  render() {}
+}