Move the AstVisitor stack check from Accept to Visit.

src/ast.cc

Index: src/ast.cc
diff --git a/src/ast.cc b/src/ast.cc
index e63ebdc09a6edee005d1e9fb902b44ea14d1dc42..8835fbb25bb01f96713a7d288e9c1bce5fdd308a 100644
--- a/src/ast.cc
+++ b/src/ast.cc
@@ -47,11 +47,8 @@ Call Call::sentinel_(NULL, NULL, 0);
 // ----------------------------------------------------------------------------
 // All the Accept member functions for each syntax tree node type.
 
-#define DECL_ACCEPT(type)                \
-  void type::Accept(AstVisitor* v) {        \
-    if (v->CheckStackOverflow()) return; \
-    v->Visit##type(this);                \
-  }
+#define DECL_ACCEPT(type)                                       \
+  void type::Accept(AstVisitor* v) { v->Visit##type(this); }
 AST_NODE_LIST(DECL_ACCEPT)
 #undef DECL_ACCEPT
 
@@ -241,6 +238,13 @@ bool Expression::GuaranteedSmiResult() {
 // ----------------------------------------------------------------------------
 // Implementation of AstVisitor
 
+bool AstVisitor::CheckStackOverflow() {
+  if (stack_overflow_) return true;
+  StackLimitCheck check;
+  if (!check.HasOverflowed()) return false;
+  return (stack_overflow_ = true);
+}
+
 
 void AstVisitor::VisitDeclarations(ZoneList<Declaration*>* declarations) {
   for (int i = 0; i < declarations->length(); i++) {