Rename Invocation to InvocationMirror.

dart/tests/language/no_such_method2_test.dart

Index: dart/tests/language/no_such_method2_test.dart
diff --git a/dart/tests/language/no_such_method2_test.dart b/dart/tests/language/no_such_method2_test.dart
index bd0b6a89fb7fc53caf38bd343b1b64c02259e0d0..5b1e9fa4c504dc1ce2bdb78c88eca3f4a82affb7 100644
--- a/dart/tests/language/no_such_method2_test.dart
+++ b/dart/tests/language/no_such_method2_test.dart
@@ -7,7 +7,7 @@ import "package:expect/expect.dart";
 // Regression test for https://code.google.com/p/dart/issues/detail?id=7697.
 // dart2js used to optimize [noSuchMethod] based on the user-provided
 // argument, and forget that the runtime might call it with its own
-// [InvocationMirror] implementation.
+// [Invocation] implementation.
 
 class Hey {
   foo() => noSuchMethod(new FakeInvocationMirror());
@@ -21,7 +21,7 @@ class You extends Hey {
   noSuchMethod(x) => x.isGetter;
 }
 
-class FakeInvocationMirror implements InvocationMirror {
+class FakeInvocationMirror implements Invocation {
   final bool isGetter = false;
 }