Initialize harmony block scoping field in scanner.

src/scanner-base.cc

 // 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 57 matching lines @@
   return x;
 }
 
 
 
 // ----------------------------------------------------------------------------
 // JavaScriptScanner
 
 JavaScriptScanner::JavaScriptScanner(UnicodeCache* scanner_contants)
     : Scanner(scanner_contants),
-      octal_pos_(Location::invalid()) { }
+      octal_pos_(Location::invalid()),
+      harmony_block_scoping_(false) { }
 
 
 void JavaScriptScanner::Initialize(UC16CharacterStream* source) {
   source_ = source;
   // Need to capture identifiers in order to recognize "get" and "set"
   // in object literals.
   Init();
   // Skip initial whitespace allowing HTML comment ends just like
   // after a newline and scan first token.
   has_line_terminator_before_next_ = true;
@@ skipping 950 matching lines @@
     }
     AddLiteralCharAdvance();
   }
   literal.Complete();
 
   next_.location.end_pos = source_pos() - 1;
   return true;
 }
 
 } }  // namespace v8::internal