devirtualize Parser

src/parser.h

Index: src/parser.h
diff --git a/src/parser.h b/src/parser.h
index c65a4ca5f3a46b08a91e139849301e736f3bd888..3d91e0784649ec685c1e775b26784fbf3433ce99 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -293,7 +293,7 @@ class RegExpBuilder: public ZoneObject {
 };
 
 
-class RegExpParser {
+class RegExpParser BASE_EMBEDDED {
  public:
   RegExpParser(FlatStringReader* in,
                Handle<String>* error,
@@ -423,13 +423,13 @@ class RegExpParser {
 // Forward declaration.
 class SingletonLogger;
 
-class Parser {
+class Parser BASE_EMBEDDED {
  public:
   Parser(CompilationInfo* info,
          int parsing_flags,  // Combination of ParsingFlags
          v8::Extension* extension,
          ScriptDataImpl* pre_data);
-  virtual ~Parser() {
+  ~Parser() {
     delete reusable_preparser_;
     reusable_preparser_ = NULL;
   }