Make static tear-off closures a class, like instance tear-off closures.

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

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library tracer;
 
 import 'dart:async' show EventSink;
 
 import 'ssa.dart';
 import '../js_backend/js_backend.dart';
@@ skipping 336 matching lines @@
   }
 
   String visitInvokeDynamicMethod(HInvokeDynamicMethod node)
       => visitInvokeDynamic(node, "method");
   String visitInvokeDynamicGetter(HInvokeDynamicGetter node)
       => visitInvokeDynamic(node, "get");
   String visitInvokeDynamicSetter(HInvokeDynamicSetter node)
       => visitInvokeDynamic(node, "set");
 
   String visitInvokeStatic(HInvokeStatic invoke) {
-    String target = temporaryId(invoke.target);
+    String target = invoke.element.name.slowToString();
     int offset = HInvoke.ARGUMENTS_OFFSET;
     List arguments = invoke.inputs.sublist(offset);
     return visitGenericInvoke("Invoke", target, arguments);
   }
 
   String visitInvokeSuper(HInvokeSuper invoke) {
-    String target = temporaryId(invoke.target);
+    String target = invoke.element.name.slowToString();
     int offset = HInvoke.ARGUMENTS_OFFSET + 1;
     List arguments = invoke.inputs.sublist(offset);
     return visitGenericInvoke("Invoke super", target, arguments);
   }
 
   String visitForeign(HForeign foreign) {
     return visitGenericInvoke("Foreign", "${foreign.codeAst}", foreign.inputs);
   }
 
   String visitForeignNew(HForeignNew node) {
@@ skipping 174 matching lines @@
 
   String visitTypeConversion(HTypeConversion node) {
     return "TypeConversion: ${temporaryId(node.checkedInput)} to "
       "${node.instructionType}";
   }
 
   String visitRangeConversion(HRangeConversion node) {
     return "RangeConversion: ${node.checkedInput}";
   }
 }