Propagate type of list literal from parser to ast, graph, and optimizer.

runtime/vm/ast.h

 // 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.
 
 #ifndef VM_AST_H_
 #define VM_AST_H_
 
 #include "platform/assert.h"
 #include "vm/allocation.h"
 #include "vm/growable_array.h"
@@ skipping 228 matching lines @@
  private:
   GrowableArray<AstNode*> nodes_;
   Array& names_;
 
   DISALLOW_COPY_AND_ASSIGN(ArgumentListNode);
 };
 
 
 class ArrayNode : public AstNode {
  public:
-  ArrayNode(intptr_t token_pos, const AbstractTypeArguments& type_arguments)
+  ArrayNode(intptr_t token_pos, const AbstractType& type)
       : AstNode(token_pos),
-        type_arguments_(type_arguments),
-        elements_(4) {
-    ASSERT(type_arguments_.IsZoneHandle());
+        type_(type),
+        elements_() {
+    ASSERT(type_.IsZoneHandle());
+    ASSERT(!type_.IsNull());
+    ASSERT(type_.IsFinalized());
   }
 
   void VisitChildren(AstNodeVisitor* visitor) const;
 
   intptr_t length() const { return elements_.length(); }
 
   AstNode* ElementAt(intptr_t index) const { return elements_[index]; }
   void SetElementAt(intptr_t index, AstNode* value) {
     elements_[index] = value;
   }
   void AddElement(AstNode* expr) { elements_.Add(expr); }
 
-  const AbstractTypeArguments& type_arguments() const {
-    return type_arguments_;
-  }
+  const AbstractType& type() const { return type_; }
 
   DECLARE_COMMON_NODE_FUNCTIONS(ArrayNode);
 
  private:
-  const AbstractTypeArguments& type_arguments_;
+  const AbstractType& type_;
   GrowableArray<AstNode*> elements_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(ArrayNode);
 };
 
 
 class LiteralNode : public AstNode {
  public:
   LiteralNode(intptr_t token_pos, const Instance& literal)
       : AstNode(token_pos), literal_(literal) {
@@ skipping 1367 matching lines @@
   const LocalVariable& context_var_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(InlinedFinallyNode);
 };
 
 }  // namespace dart
 
 #undef DECLARE_COMMON_NODE_FUNCTIONS
 
 #endif  // VM_AST_H_