Merge two functions that create sideffect free compound load nodes.

runtime/vm/parser.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_PARSER_H_
 #define VM_PARSER_H_
 
 #include "include/dart_api.h"
 
 #include "vm/ast.h"
@@ skipping 424 matching lines @@
   AstNode* ResolveVarOrField(intptr_t ident_pos, const String& ident);
   RawString* ResolveImportVar(intptr_t ident_pos, const String& ident);
   AstNode* OptimizeBinaryOpNode(intptr_t op_pos,
                                 Token::Kind binary_op,
                                 AstNode* lhs,
                                 AstNode* rhs);
   AstNode* ExpandAssignableOp(intptr_t op_pos,
                               Token::Kind assignment_op,
                               AstNode* lhs,
                               AstNode* rhs);
-  AstNode* AsSideEffectFreeNode(AstNode* node);
+  AstNode* PrepareCompoundAssignmentNodes(AstNode** expr);
   LocalVariable* CreateTempConstVariable(intptr_t token_index,
                                          intptr_t token_id,
                                          const char* s);
 
   static bool IsAssignableExpr(AstNode* expr);
 
   static bool IsPrefixOperator(Token::Kind token);
   static bool IsIncrementOperator(Token::Kind token);
 
   static SequenceNode* NodeAsSequenceNode(intptr_t sequence_pos,
@@ skipping 44 matching lines @@
   // code at all points in the try block where an exit from the block is
   // done using 'return', 'break' or 'continue' statements.
   TryBlocks* try_blocks_list_;
 
   DISALLOW_COPY_AND_ASSIGN(Parser);
 };
 
 }  // namespace dart
 
 #endif  // VM_PARSER_H_