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

sdk/lib/_internal/compiler/implementation/js_backend/namer.dart

 // Copyright (c) 2011, 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.
 
 part of js_backend;
 
 /**
  * Assigns JavaScript identifiers to Dart variables, class-names and members.
  */
 class Namer implements ClosureNamer {
@@ skipping 717 matching lines @@
       compiler.internalError('getName for unknown kind: ${element.kind}',
                               node: element.parseNode(compiler));
     }
   }
 
   String getLazyInitializerName(Element element) {
     assert(Elements.isStaticOrTopLevelField(element));
     return getMappedGlobalName("$getterPrefix${getName(element)}");
   }
 
+  String getStaticClosureName(Element element) {
+    assert(Elements.isStaticOrTopLevelFunction(element));
+    return getMappedGlobalName("${getName(element)}\$closure");
+  }
+
   String isolatePropertiesAccess(Element element) {
     return "$isolateName.$isolatePropertiesName.${getName(element)}";
   }
 
   String isolateAccess(Element element) {
     return "$CURRENT_ISOLATE.${getName(element)}";
   }
 
   String isolateBailoutAccess(Element element) {
     String newName = getMappedGlobalName('${getName(element)}\$bailout');
     return '$CURRENT_ISOLATE.$newName';
   }
 
   String isolateLazyInitializerAccess(Element element) {
     return "$CURRENT_ISOLATE.${getLazyInitializerName(element)}";
   }
 
+  String isolateStaticClosureAccess(Element element) {
+    return "$CURRENT_ISOLATE.${getStaticClosureName(element)}";
+  }
+
   String operatorIsPrefix() => r'$is';
 
   String operatorAsPrefix() => r'$as';
 
   String operatorIs(Element element) {
     // TODO(erikcorry): Reduce from $isx to ix when we are minifying.
     return '${operatorIsPrefix()}${getRuntimeTypeName(element)}';
   }
 
   /*
@@ skipping 379 matching lines @@
     hash = hash ^ (hash >> 6);
     return hash;
   }
 
   static int _finish(int hash) {
     hash = _MASK & (hash + (((_MASK >> 3) & hash) <<  3));
     hash = hash & (hash >> 11);
     return _MASK & (hash + (((_MASK >> 15) & hash) << 15));
   }
 }