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

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

 // Copyright (c) 2012, 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 ssa;
 
 abstract class HVisitor<R> {
   R visitAdd(HAdd node);
   R visitBailoutTarget(HBailoutTarget node);
   R visitBitAnd(HBitAnd node);
@@ skipping 1336 matching lines @@
     } else {
       sideEffects.setAllSideEffects();
       sideEffects.setDependsOnSomething();
     }
   }
   toString() => 'invoke dynamic setter: $selector';
   accept(HVisitor visitor) => visitor.visitInvokeDynamicSetter(this);
 }
 
 class HInvokeStatic extends HInvoke {
+  final Element element;
   /** The first input must be the target. */
-  HInvokeStatic(inputs, HType type) : super(inputs) {
+  HInvokeStatic(this.element, inputs, HType type) : super(inputs) {
     instructionType = type;
   }
 
   toString() => 'invoke static: ${element.name}';
   accept(HVisitor visitor) => visitor.visitInvokeStatic(this);
   int typeCode() => HInstruction.INVOKE_STATIC_TYPECODE;
-  Element get element => target.element;
-  HStatic get target => inputs[0];
 }
 
 class HInvokeSuper extends HInvokeStatic {
   /** The class where the call to super is being done. */
   final ClassElement caller;
   final bool isSetter;
 
-  HInvokeSuper(this.caller, inputs, {this.isSetter})
-      : super(inputs, HType.UNKNOWN);
+  HInvokeSuper(Element element, this.caller, inputs, {this.isSetter})
+      : super(element, inputs, HType.UNKNOWN);
   toString() => 'invoke super: ${element.name}';
   accept(HVisitor visitor) => visitor.visitInvokeSuper(this);
 
   HInstruction get value {
     assert(isSetter);
-    // Index 0: the element, index 1: 'this'.
-    return inputs[2];
+    // Index 0: 'this'.
+    return inputs[1];
   }
 }
 
 abstract class HFieldAccess extends HInstruction {
   final Element element;
 
   HFieldAccess(Element element, List<HInstruction> inputs)
       : this.element = element, super(inputs);
 
   HInstruction get receiver => inputs[0];
@@ skipping 1206 matching lines @@
   HBasicBlock get start => expression.start;
   HBasicBlock get end {
     // We don't create a switch block if there are no cases.
     assert(!statements.isEmpty);
     return statements.last.end;
   }
 
   bool accept(HStatementInformationVisitor visitor) =>
       visitor.visitSwitchInfo(this);
 }