Add %TypedArray% to proto chain

src/runtime/runtime-object.cc

Index: src/runtime/runtime-object.cc
diff --git a/src/runtime/runtime-object.cc b/src/runtime/runtime-object.cc
index 99aebda67bd3b2fb4342d867ea959a0e54805325..fe2af9efe62353587c19633bf8c6ba0e83833eac 100644
--- a/src/runtime/runtime-object.cc
+++ b/src/runtime/runtime-object.cc
@@ -156,6 +156,7 @@ RUNTIME_FUNCTION(Runtime_GetPrototype) {
 }
 
 
+// Set object.__proto__

[adamk, 2015/06/13 00:49:38]

I'd say "Set the [[Prototype]] internal slot" instead, since
Runtime_SetPrototype below is what we have to use for actually setting __proto__
from script.

[Dan Ehrenberg, 2015/06/13 05:54:09]

Done.

 RUNTIME_FUNCTION(Runtime_InternalSetPrototype) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 2);