Add support for closure calls through getters.

tests/lib/mirrors/invoke_call_through_getter_test.dart

Index: tests/lib/mirrors/invoke_call_through_getter_test.dart
diff --git a/tests/lib/mirrors/invoke_call_through_getter_test.dart b/tests/lib/mirrors/invoke_call_through_getter_test.dart
index a4afdd6599f04162e4da0d738ad0e96d1dd08798..c0652994698bf4c010a674d02020b742545a4ba2 100644
--- a/tests/lib/mirrors/invoke_call_through_getter_test.dart
+++ b/tests/lib/mirrors/invoke_call_through_getter_test.dart
@@ -51,14 +51,14 @@ testInstanceReflective() {
                 im.invoke(#closure, [9, 10]).reflectee);
   Expect.equals('3 C 11 12 13 null',
                 im.invoke(#closureOpt, [11, 12, 13]).reflectee);
-  Expect.equals('4 C 14 15 null 16',
-                im.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee);
+  Expect.equals('4 C 14 15 null 16',                                        /// named: ok
+                im.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee);    /// named: continued
   Expect.equals('DNU',
                 im.invoke(#doesNotExist, [17, 18]).reflectee);
-  Expect.throws(() => im.invoke(#closure, ['wrong arity']),
-                (e) => e is NoSuchMethodError);
-  Expect.throws(() => im.invoke(#notAClosure, []),
-                (e) => e is NoSuchMethodError);
+  Expect.throws(() => im.invoke(#closure, ['wrong arity']),  /// getter_call_stub: ok
+                (e) => e is NoSuchMethodError);              /// getter_call_stub: continued
+  Expect.throws(() => im.invoke(#notAClosure, []),           /// getter_call_stub: continued
+                (e) => e is NoSuchMethodError);              /// getter_call_stub: continued
 }
 
 class D {
@@ -90,8 +90,8 @@ testClassReflective() {
                 cm.invoke(#closure, [9, 10]).reflectee);
   Expect.equals('3 11 12 13 null',
                 cm.invoke(#closureOpt, [11, 12, 13]).reflectee);
-  Expect.equals('4 14 15 null 16',
-                cm.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee);
+  Expect.equals('4 14 15 null 16',                                         /// named: continued
+                cm.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee);   /// named: continued
   Expect.throws(() => cm.invoke(#closure, ['wrong arity']),
                 (e) => e is NoSuchMethodError);
 }
@@ -123,8 +123,8 @@ testLibraryReflective() {
                 lm.invoke(#closure, [9, 10]).reflectee);
   Expect.equals('3 11 12 13 null',
                 lm.invoke(#closureOpt, [11, 12, 13]).reflectee);
-  Expect.equals('4 14 15 null 16',
-                lm.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee);
+  Expect.equals('4 14 15 null 16',                                        /// named: continued
+                lm.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee);  /// named: continued
   Expect.throws(() => lm.invoke(#closure, ['wrong arity']),
                 (e) => e is NoSuchMethodError);
 }