Revert #1091 Remove unboxed object code phase 1 + extras.

This should be the last code backout for this. merging this branch
should get us back to the way we were (+ additional code changes for
later changes) as fasr as the unused unboxed code is concerned.

1 files changed, 9 insertions, 4 deletions

diff --git a/js/src/vm/Interpreter-inl.h b/js/src/vm/Interpreter-inl.h
index adefa6e93..0e81dfef4 100644
--- a/js/src/vm/Interpreter-inl.h
+++ b/js/src/vm/Interpreter-inl.h
@@ -22,6 +22,7 @@
 #include "vm/EnvironmentObject-inl.h"
 #include "vm/Stack-inl.h"
 #include "vm/String-inl.h"
+#include "vm/UnboxedObject-inl.h"
 
 namespace js {
 
@@ -336,10 +337,14 @@ InitGlobalLexicalOperation(JSContext* cx, LexicalEnvironmentObject* lexicalEnvAr
 inline bool
 InitPropertyOperation(JSContext* cx, JSOp op, HandleObject obj, HandleId id, HandleValue rhs)
 {
-  MOZ_ASSERT(obj->is<PlainObject>() || obj->is<JSFunction>());
-  unsigned propAttrs = GetInitDataPropAttrs(op);
-  return NativeDefineProperty(cx, obj.as<NativeObject>(), id, rhs,
-                              nullptr, nullptr, propAttrs);
+    if (obj->is<PlainObject>() || obj->is<JSFunction>()) {
+        unsigned propAttrs = GetInitDataPropAttrs(op);
+        return NativeDefineProperty(cx, obj.as<NativeObject>(), id, rhs, nullptr, nullptr,
+                                    propAttrs);
+    }
+
+    MOZ_ASSERT(obj->as<UnboxedPlainObject>().layout().lookup(id));
+    return PutProperty(cx, obj, id, rhs, false);
 }
 
 inline bool