[ic] Encode [Keyed]StoreIC's language mode in slot kind instead of code object's flags.

test/cctest/interpreter/test-interpreter.cc

Index: test/cctest/interpreter/test-interpreter.cc
diff --git a/test/cctest/interpreter/test-interpreter.cc b/test/cctest/interpreter/test-interpreter.cc
index 1d71c0a15f2963612f04c2d55784b4128ee1d752..bb079a55ab91abadad9e969bf97f96360fd0cb09 100644
--- a/test/cctest/interpreter/test-interpreter.cc
+++ b/test/cctest/interpreter/test-interpreter.cc
@@ -1128,7 +1128,7 @@ TEST(InterpreterStoreNamedProperty) {
   Zone zone(isolate->allocator(), ZONE_NAME);
 
   FeedbackVectorSpec feedback_spec(&zone);
-  FeedbackVectorSlot slot = feedback_spec.AddStoreICSlot();
+  FeedbackVectorSlot slot = feedback_spec.AddStoreICSlot(SLOPPY);
 
   Handle<i::TypeFeedbackMetadata> metadata =
       NewTypeFeedbackMetadata(isolate, &feedback_spec);
@@ -1186,7 +1186,7 @@ TEST(InterpreterStoreKeyedProperty) {
   Zone zone(isolate->allocator(), ZONE_NAME);
 
   FeedbackVectorSpec feedback_spec(&zone);
-  FeedbackVectorSlot slot = feedback_spec.AddKeyedStoreICSlot();
+  FeedbackVectorSlot slot = feedback_spec.AddKeyedStoreICSlot(SLOPPY);
 
   Handle<i::TypeFeedbackMetadata> metadata =
       NewTypeFeedbackMetadata(isolate, &feedback_spec);