Support deprecation + use counters for constructor attributes.

Source/bindings/tests/idls/TestObject.idl

Index: Source/bindings/tests/idls/TestObject.idl
diff --git a/Source/bindings/tests/idls/TestObject.idl b/Source/bindings/tests/idls/TestObject.idl
index db700deaede15379b96bdab42146ac862543f514..072585f86a00af55aaa6e2e8af6df0028a1a116f 100644
--- a/Source/bindings/tests/idls/TestObject.idl
+++ b/Source/bindings/tests/idls/TestObject.idl
@@ -58,6 +58,7 @@ interface TestObject : EventTarget {
     attribute EventHandler             eventHandlerAttr;
     [MeasureAs=TestFeature] attribute TestObject testObjAttr;
     [ExposeJSAccessors] attribute DOMString attrWithJSGetterAndSetter;
+    [MeasureAs=TestFeature] attribute TestSubObjConstructor TestSubObjMeasured;
 
     // Name starting with an acronym
     attribute TestObject                  XMLObjAttr;
@@ -298,6 +299,7 @@ interface TestObject : EventTarget {
 
     [DeprecateAs=Method] void deprecatedMethod();
     [DeprecateAs=StaticMethod] static void deprecatedStaticMethod();
+    [DeprecateAs=ConstructorAttribute] attribute TestSubObjConstructor deprecatedConstructor;
 
     [DeprecateAs=Constant] const unsigned short DEPRECATED_CONSTANT = 1;