Reapply r27285: "Support dynamic as type literal."

tests/language/first_class_types_literals_test.dart

Index: tests/language/first_class_types_literals_test.dart
diff --git a/tests/language/first_class_types_literals_test.dart b/tests/language/first_class_types_literals_test.dart
index 896ba5d62f1f96f45926d5eaef4065fc42519504..8ba570a6baac87597a6ca6e526606756a679c734 100644
--- a/tests/language/first_class_types_literals_test.dart
+++ b/tests/language/first_class_types_literals_test.dart
@@ -19,9 +19,11 @@ main() {
   Expect.equals(int, int);
   Expect.notEquals(int, num);
   Expect.equals(Foo, Foo);
+  Expect.equals(dynamic, dynamic);
 
   // Test that class literals return instances of Type.
   Expect.isTrue((D).runtimeType is Type);
+  Expect.isTrue((dynamic).runtimeType is Type);
 
   // Test that types from runtimeType and literals agree.
   Expect.equals(int, 1.runtimeType);
@@ -40,4 +42,11 @@ main() {
   Expect.throws(() => C + 1, (e) => e is NoSuchMethodError);
   Expect.throws(() => C[2], (e) => e is NoSuchMethodError);
   Expect.throws(() => C[2] = 'hest', (e) => e is NoSuchMethodError);
+  Expect.throws(() => dynamic = 1, (e) => e is NoSuchMethodError);
+  Expect.throws(() => dynamic++, (e) => e is NoSuchMethodError);
+  Expect.throws(() => dynamic + 1, (e) => e is NoSuchMethodError);
+  Expect.throws(() => dynamic[2], (e) => e is NoSuchMethodError);
+  Expect.throws(() => dynamic[2] = 'hest', (e) => e is NoSuchMethodError);
+
+  Expect.equals((dynamic).toString(), 'dynamic');
 }