IDL: Add build target for IDL dictionary impl generation in core

Source/core/testing/Internals.idl

Index: Source/core/testing/Internals.idl
diff --git a/Source/core/testing/Internals.idl b/Source/core/testing/Internals.idl
index ceac81e4cff38cee7e1c84b7cc1be4fa046eec21..75455993cd4e0a8095b3a9335c78f2c3d22b0ed1 100644
--- a/Source/core/testing/Internals.idl
+++ b/Source/core/testing/Internals.idl
@@ -201,7 +201,7 @@
 
     TypeConversions typeConversions();
 
-    // This is enabled only in Debug builds.
+    // These is enabled only in Debug builds.

[haraken, 2014/08/27 08:37:39]

These => This

[bashi, 2014/08/27 10:54:01]

Oh.. Done.

     // This is because we want to avoid putting the byte stream of testing private scripts
     // into the binary of Release builds.
     PrivateScriptTest privateScriptTest();
@@ -277,4 +277,6 @@
     void hideAllTransitionElements();
 
     [RaisesException] void forcePluginPlaceholder(HTMLElement plugin, DOMString htmlSource);
+
+    DictionaryTest dictionaryTest();
 };