[turbofan] Fix exception message for non-constructables.

test/message/call-primitive-constructor.out

Index: test/message/call-primitive-constructor.out
diff --git a/test/message/call-primitive-constructor.out b/test/message/call-primitive-constructor.out
new file mode 100644
index 0000000000000000000000000000000000000000..ad5172accebf761ea067b497fbf4f40dd5f73ccd
--- /dev/null
+++ b/test/message/call-primitive-constructor.out
@@ -0,0 +1,9 @@
+# Copyright 2016 the V8 project authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+*%(basename)s:6: TypeError: non_callable is not a constructor
+new non_callable();
+^
+TypeError: non_callable is not a constructor
+    at *%(basename)s:6:1