Remove TLS access for current Zone.

src/parser.h

Index: src/parser.h
diff --git a/src/parser.h b/src/parser.h
index 2a79b63bfdc4075f0964849bbce7cbee5ccd6d8c..773d59a5e20b51e934e18a2e506dfdc68b2481da 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -200,12 +200,12 @@ class BufferedZoneList {
   // Adds element at end of list. This element is buffered and can
   // be read using last() or removed using RemoveLast until a new Add or until
   // RemoveLast or GetList has been called.
-  void Add(T* value) {
+  void Add(T* value, Zone* zone) {
     if (last_ != NULL) {
       if (list_ == NULL) {
-        list_ = new ZoneList<T*>(initial_size);
+        list_ = new(zone) ZoneList<T*>(initial_size, zone);
       }
-      list_->Add(last_);
+      list_->Add(last_, zone);
     }
     last_ = value;
   }
@@ -250,12 +250,12 @@ class BufferedZoneList {
     return length + ((last_ == NULL) ? 0 : 1);
   }
 
-  ZoneList<T*>* GetList() {
+  ZoneList<T*>* GetList(Zone* zone) {
     if (list_ == NULL) {
-      list_ = new ZoneList<T*>(initial_size);
+      list_ = new(zone) ZoneList<T*>(initial_size, zone);
     }
     if (last_ != NULL) {
-      list_->Add(last_);
+      list_->Add(last_, zone);
       last_ = NULL;
     }
     return list_;
@@ -285,7 +285,7 @@ class RegExpBuilder: public ZoneObject {
   void FlushCharacters();
   void FlushText();
   void FlushTerms();
-  Zone* zone() { return zone_; }
+  Zone* zone() const { return zone_; }
 
   Zone* zone_;
   bool pending_empty_;
@@ -371,7 +371,7 @@ class RegExpParser {
                       int disjunction_capture_index,
                       Zone* zone)
         : previous_state_(previous_state),
-          builder_(new RegExpBuilder(zone)),
+          builder_(new(zone) RegExpBuilder(zone)),
           group_type_(group_type),
           disjunction_capture_index_(disjunction_capture_index) {}
     // Parser state of containing expression, if any.
@@ -398,7 +398,7 @@ class RegExpParser {
   };
 
   Isolate* isolate() { return isolate_; }
-  Zone* zone() { return isolate_->zone(); }
+  Zone* zone() const { return isolate_->zone(); }
 
   uc32 current() { return current_; }
   bool has_more() { return has_more_; }
@@ -548,7 +548,7 @@ class Parser {
                              ZoneScope* zone_scope);
 
   Isolate* isolate() { return isolate_; }
-  Zone* zone() { return zone_; }
+  Zone* zone() const { return zone_; }
 
   // Called by ParseProgram after setting up the scanner.
   FunctionLiteral* DoParseProgram(CompilationInfo* info,