[api] Don't mark as constructible if instance_call_handler is used

This only affects document.all, which is the only user of
|ObjectTemplate::SetCallAsFunctionHandler|, and will mean that
new document.all() will throw TypeError. There are tests for this:
//src/third_party/WebKit/LayoutTests/external/wpt/html/infrastructure/common-dom-interfaces/collections/htmlallcollection.html

(cherry picked from commit 7233447e4ac4587c81e91077857f8a30c4a6d2df)

Change-Id: Ibb39b3c61b688591c781158cf4abc0c2d74c908e
Reviewed-on: https://chromium-review.googlesource.com/882642Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Philip Jägenstedt <foolip@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/890496
Cr-Commit-Position: refs/heads/master@{#50943}

src/api-natives.cc

@@ -726,7 +726,6 @@ Handle<JSFunction> ApiNatives::CreateApiFunction(
   // Mark instance as callable in the map.
   if (!obj->instance_call_handler()->IsUndefined(isolate)) {
     map->set_is_callable(true);
-    map->set_is_constructor(true);
   }
 
   if (immutable_proto) map->set_is_immutable_proto(true);