Fix stack overflow in cctest/test-api/Threadin2 after r3613.

r3613 started wrapping all builtins in extra call in debug mode so it
became easier to cause stack overflow especially in 64-bit build.

Review URL: http://codereview.chromium.org/546129

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3749 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/cctest/test-api.cc

@@ -1151,7 +1151,7 @@ THREADED_TEST(UndefinedIsNotEnumerable) {
 
 
 v8::Handle<Script> call_recursively_script;
-static const int kTargetRecursionDepth = 300;  // near maximum
+static const int kTargetRecursionDepth = 200;  // near maximum
 
 
 static v8::Handle<Value> CallScriptRecursivelyCall(const v8::Arguments& args) {