Removing exit time destructors by leaking static members.

src/ast.h

Index: src/ast.h
diff --git a/src/ast.h b/src/ast.h
index 71639d5dd2d8a29645b3d26a543c810d0f4efa55..e8e8fb4e5db0565ca54e3ad604d8747d2f903a37 100644
--- a/src/ast.h
+++ b/src/ast.h
@@ -2123,9 +2123,10 @@ class RegExpEmpty: public RegExpTree {
   virtual bool IsEmpty();
   virtual int min_match() { return 0; }
   virtual int max_match() { return 0; }
-  static RegExpEmpty* GetInstance() { return &kInstance; }
- private:
-  static RegExpEmpty kInstance;
+  static RegExpEmpty* GetInstance() {
+    static RegExpEmpty* instance = ::new RegExpEmpty();
+    return instance;
+  }
 };