Rename NoSuchMethodException to NoSuchMethodError.

tests/language/implied_interface_test.dart

Index: tests/language/implied_interface_test.dart
diff --git a/tests/language/implied_interface_test.dart b/tests/language/implied_interface_test.dart
index f565038568c1ed94e4e78ded32274c5141254ff4..9a6f955a3fbc6acf324e407d9b35f8b4be2743a9 100644
--- a/tests/language/implied_interface_test.dart
+++ b/tests/language/implied_interface_test.dart
@@ -33,14 +33,14 @@ main() {
   ImplementsExtendsClass c2 = new ImplementsExtendsClass();
   try {
     c1.foo;
-    Expect.fail('expected a NoSuchMethodException');
-  } on NoSuchMethodException catch (ex) {
+    Expect.fail('expected a NoSuchMethodError');
+  } on NoSuchMethodError catch (ex) {
     // Expected error.
   }
   try {
     c2.foo;
-    Expect.fail('expected a NoSuchMethodException');
-  } on NoSuchMethodException catch (ex) {
+    Expect.fail('expected a NoSuchMethodError');
+  } on NoSuchMethodError catch (ex) {
     // Expected error.
   }
   Expect.equals(true, c1 is BaseClass);