Revert "Set runtime type on list and map literals."

sdk/lib/_internal/compiler/implementation/ssa/builder.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;
 
 /**
  * A special element for the extra parameter taken by intercepted
  * methods. We need to override [Element.computeType] because our
  * optimizers may look at its declared type.
@@ skipping 2006 matching lines @@
 
   void push(HInstruction instruction) {
     add(instruction);
     stack.add(instruction);
   }
 
   void pushWithPosition(HInstruction instruction, Node node) {
     push(attachPosition(instruction, node));
   }
 
-  HInstruction peek() => stack.last;
-
   HInstruction pop() {
     return stack.removeLast();
   }
 
   void dup() {
     stack.add(stack.last);
   }
 
   HInstruction popBoolified() {
     HInstruction value = pop();
@@ skipping 2475 matching lines @@
         HInstruction initialValue = graph.addConstantNull(compiler);
         localsHandler.updateLocal(elements[definition], initialValue);
       } else {
         assert(definition is SendSet);
         visitSendSet(definition);
         pop();  // Discard value.
       }
     }
   }
 
-  void setRtiIfNeeded(HInstruction object, Node node) {
-    InterfaceType type = elements.getType(node);
-    if (!backend.classNeedsRti(type.element)) return;
-    List<HInstruction> arguments = <HInstruction>[];
-    for (DartType argument in type.typeArguments) {
-      arguments.add(analyzeTypeArgument(argument));
-    }
-    callSetRuntimeTypeInfo(type.element, arguments, object);
-  }
-
   visitLiteralList(LiteralList node) {
     HInstruction instruction;
 
     if (node.isConst()) {
       instruction = addConstant(node);
     } else {
       List<HInstruction> inputs = <HInstruction>[];
       for (Link<Node> link = node.elements.nodes;
            !link.isEmpty;
            link = link.tail) {
         visit(link.head);
         inputs.add(pop());
       }
       instruction = buildLiteralList(inputs);
       add(instruction);
-      setRtiIfNeeded(instruction, node);
     }
 
     TypeMask type =
         TypeMaskFactory.inferredForNode(currentElement, node, compiler);
     if (!type.containsAll(compiler)) instruction.instructionType = type;
     stack.add(instruction);
   }
 
   visitConditional(Conditional node) {
     SsaBranchBuilder brancher = new SsaBranchBuilder(this, node);
@@ skipping 182 matching lines @@
          !link.isEmpty;
          link = link.tail) {
       visit(link.head);
       inputs.add(pop());
       inputs.add(pop());
     }
     HLiteralList keyValuePairs = buildLiteralList(inputs);
     add(keyValuePairs);
     TypeMask mapType = new TypeMask.nonNullSubtype(backend.mapLiteralClass);
     pushInvokeStatic(node, backend.getMapMaker(), [keyValuePairs], mapType);
-    setRtiIfNeeded(peek(), node);
   }
 
   visitLiteralMapEntry(LiteralMapEntry node) {
     visit(node.value);
     visit(node.key);
   }
 
   visitNamedArgument(NamedArgument node) {
     visit(node.expression);
   }
@@ skipping 996 matching lines @@
           new HSubGraphBlockInformation(elseBranch.graph));
 
     HBasicBlock conditionStartBlock = conditionBranch.block;
     conditionStartBlock.setBlockFlow(info, joinBlock);
     SubGraph conditionGraph = conditionBranch.graph;
     HIf branch = conditionGraph.end.last;
     assert(branch is HIf);
     branch.blockInformation = conditionStartBlock.blockFlow;
   }
 }