Deprecate unused Map/Set FromArray factory methods

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index 560bfb4d00370d5edaf2ab34c4e4e8e8a7369ebf..92a1235e672a182600228124b94fe2d5a4204ae2 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -3008,8 +3008,9 @@ class V8_EXPORT Map : public Object {
    * in the same manner as the array returned from AsArray().
    * Guaranteed to be side-effect free if the array contains no holes.
    */
-  static V8_WARN_UNUSED_RESULT MaybeLocal<Map> FromArray(Local<Context> context,
-                                                         Local<Array> array);
+  static V8_WARN_UNUSED_RESULT V8_DEPRECATE_SOON(

[jochen (gone - plz use gerrit), 2015/07/15 13:35:37]

can you mark them as V8_DEPRECATED() right away?

+      "Use mutation methods instead",
+      MaybeLocal<Map> FromArray(Local<Context> context, Local<Array> array));
 
   V8_INLINE static Map* Cast(Value* obj);
 
@@ -3047,8 +3048,9 @@ class V8_EXPORT Set : public Object {
    * Creates a new Set containing the items in array.
    * Guaranteed to be side-effect free if the array contains no holes.
    */
-  static V8_WARN_UNUSED_RESULT MaybeLocal<Set> FromArray(Local<Context> context,
-                                                         Local<Array> array);
+  static V8_WARN_UNUSED_RESULT V8_DEPRECATE_SOON(
+      "Use mutation methods instead",
+      MaybeLocal<Set> FromArray(Local<Context> context, Local<Array> array));
 
   V8_INLINE static Set* Cast(Value* obj);