Move invokeOn to InstanceMirror.

dart/sdk/lib/_internal/compiler/implementation/ssa/builder.dart

Index: dart/sdk/lib/_internal/compiler/implementation/ssa/builder.dart
diff --git a/dart/sdk/lib/_internal/compiler/implementation/ssa/builder.dart b/dart/sdk/lib/_internal/compiler/implementation/ssa/builder.dart
index 971ccf8ba6f5a0e1efa19a749d9cfb2216368ab1..4778f2639376eecabd15a414b29dc818a13122da 100644
--- a/dart/sdk/lib/_internal/compiler/implementation/ssa/builder.dart
+++ b/dart/sdk/lib/_internal/compiler/implementation/ssa/builder.dart
@@ -3136,10 +3136,10 @@ class SsaBuilder extends ResolvedVisitor implements Visitor {
     ClassElement cls = currentElement.getEnclosingClass();
     Element element = cls.lookupSuperMember(Compiler.NO_SUCH_METHOD);
     if (element.enclosingElement.declaration != compiler.objectClass) {
-      // Register the call as dynamic if [:noSuchMethod:] on the super class
-      // is _not_ the default implementation from [:Object:], in case
-      // the [:noSuchMethod:] implementation does an [:invokeOn:] on
-      // the invocation mirror.
+      // Register the call as dynamic if [noSuchMethod] on the super
+      // class is _not_ the default implementation from [Object], in
+      // case the [noSuchMethod] implementation calls
+      // [JSInvocationMirror._invokeOn].
       compiler.enqueuer.codegen.registerSelectorUse(selector);
     }
     HStatic target = new HStatic(element);