IDL build: Split global constructors into core and modules

Source/core/core_generated.gypi

Index: Source/core/core_generated.gypi
diff --git a/Source/core/core_generated.gypi b/Source/core/core_generated.gypi
new file mode 100644
index 0000000000000000000000000000000000000000..f111cb0413008cc05a1871c09afcfda9a393e20f
--- /dev/null
+++ b/Source/core/core_generated.gypi
@@ -0,0 +1,10 @@
+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+{
+  'variables': {
+    # FIXME: core_generated should output to here http://crbug.com/358074
+    'blink_core_output_dir': '<(SHARED_INTERMEDIATE_DIR)/blink/core',
+  },
+}