Preliminary code for block scopes and block contexts.

src/ast-inl.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 32 matching lines @@
       tag_(NULL), cases_(NULL) {
 }
 
 
 Block::Block(Isolate* isolate,
              ZoneStringList* labels,
              int capacity,
              bool is_initializer_block)
     : BreakableStatement(isolate, labels, TARGET_FOR_NAMED_ONLY),
       statements_(capacity),
-      is_initializer_block_(is_initializer_block) {
+      is_initializer_block_(is_initializer_block),
+      block_scope_(NULL) {
 }
 
 
 BreakableStatement::BreakableStatement(Isolate* isolate,
                                        ZoneStringList* labels,
                                        Type type)
     : labels_(labels),
       type_(type),
       entry_id_(GetNextId(isolate)),
       exit_id_(GetNextId(isolate)) {
@@ skipping 47 matching lines @@
 
 
 bool FunctionLiteral::strict_mode() const {
   return scope()->is_strict_mode();
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_AST_INL_H_