Remove ExitContextStatement.

src/ast.h

Index: src/ast.h
diff --git a/src/ast.h b/src/ast.h
index 0eacb421029431f2907e348f3558509b732b4112..2b32cdfa91ff7bd4ff7b194f3529670e1c474975 100644
--- a/src/ast.h
+++ b/src/ast.h
@@ -62,7 +62,6 @@ namespace internal {
   V(BreakStatement)                             \
   V(ReturnStatement)                            \
   V(WithStatement)                              \
-  V(ExitContextStatement)                       \
   V(SwitchStatement)                            \
   V(DoWhileStatement)                           \
   V(WhileStatement)                             \
@@ -681,14 +680,6 @@ class WithStatement: public Statement {
 };
 
 
-class ExitContextStatement: public Statement {
- public:
-  virtual bool IsInlineable() const;
-
-  DECLARE_NODE_TYPE(ExitContextStatement)
-};
-
-
 class CaseClause: public ZoneObject {
  public:
   CaseClause(Isolate* isolate,