Remove built-in identifier 'negate' from VM

runtime/vm/ast.cc

 // 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.
 
 #include "vm/ast.h"
 #include "vm/compiler.h"
 #include "vm/dart_entry.h"
 #include "vm/isolate.h"
 #include "vm/object_store.h"
 #include "vm/resolver.h"
@@ skipping 64 matching lines @@
 
 void ArrayNode::VisitChildren(AstNodeVisitor* visitor) const {
   for (intptr_t i = 0; i < this->length(); i++) {
     ElementAt(i)->Visit(visitor);
   }
 }
 
 
 // TODO(srdjan): Add code for logical negation.
 AstNode* LiteralNode::ApplyUnaryOp(Token::Kind unary_op_kind) {
-  if (unary_op_kind == Token::kSUB) {
+  if (unary_op_kind == Token::kNEGATE) {
     if (literal().IsSmi()) {
       const Smi& smi = Smi::Cast(literal());
       const Instance& literal =
           Instance::ZoneHandle(Integer::New(-smi.Value()));
       return new LiteralNode(this->token_pos(), literal);
     }
     if (literal().IsDouble()) {
       const Double& dbl = Double::Cast(literal());
       // Preserve negative zero.
       double new_value = (dbl.value() == 0.0) ? -0.0 : (0.0 - dbl.value());
@@ skipping 152 matching lines @@
   if (new_operand != NULL) {
     return new_operand;
   }
   return new UnaryOpNode(token_pos, kind, operand);
 }
 
 
 bool UnaryOpNode::IsKindValid() const {
   switch (kind_) {
     case Token::kADD:
-    case Token::kSUB:
+    case Token::kNEGATE:
     case Token::kNOT:
     case Token::kBIT_NOT:
       return true;
     default:
       return false;
   }
 }
 
 
 const Instance* UnaryOpNode::EvalConstExpr() const {
   const Instance* val = this->operand()->EvalConstExpr();
   if (val == NULL) {
     return NULL;
   }
   switch (kind_) {
     case Token::kADD:
-    case Token::kSUB:
+    case Token::kNEGATE:
       return val->IsNumber() ? val : NULL;
     case Token::kNOT:
       return val->IsBool() ? val : NULL;
     case Token::kBIT_NOT:
       return val->IsInteger() ? val : NULL;
     default:
       return NULL;
   }
 }
 
@@ skipping 134 matching lines @@
   if (result.IsError() || result.IsNull()) {
     // TODO(turnidge): We could get better error messages by returning
     // the Error object directly to the parser.  This will involve
     // replumbing all of the EvalConstExpr methods.
     return NULL;
   }
   return &Instance::ZoneHandle(Instance::Cast(result).raw());
 }
 
 }  // namespace dart