Added Dartium changes onto 45.0.2454.104

LayoutTests/dart/inspector/scope-variables.dart

+library scope_variables_test;
+
+import 'dart:core' as core; // import with prefix so global dart:core fields don't appear in scope chain.
+import 'dart:html' as html; // import with prefix so global dart:html fields don't appear in scope chain.
+
+main() {
+  html.window.onMessage.listen(handleMessage);
+}
+
+handleMessage(event) {
+  if (event.data == 'fromJS') {
+    handleMessage2(event);
+  }
+}
+
+handleMessage2(event) {
+  var b = false;
+  var i = 42;
+  var d = 1.618;
+  var _s = 'foo';
+  var l = [1, 2, 3];
+  A a1 = new A(3.14);
+  A a2;
+  html.window.postMessage('fromDart', '*');
+}
+
+class A {
+  var d;
+
+  A(this.d) {}
+
+  toString() {
+    return "[Instance of A, d = $d]";
+  }
+}
+
+var globalVariable = 'globalString';
+
+var globalMapVariable = {'foo': 'bar', 'baz': 42};
+
+var globalArrayVariable = [3, 1, 4, 1, 5, 9];
+
+String get throwingGetter {
+  throw 'only the best reviews';
+}
+
+html.DivElement get exampleDivGetter => html.query("#example_div");