Introduce LanguageMode, drop StrictMode.

src/ic/ic-inl.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_IC_INL_H_
 #define V8_IC_INL_H_
 
 #include "src/ic/ic.h"
 
 #include "src/compiler.h"
@@ skipping 88 matching lines @@
 
   // Don't use this for load_ics when --vector-ics is turned on.
   DCHECK(!(FLAG_vector_ics && target->is_inline_cache_stub()) ||
          (target->kind() != Code::LOAD_IC &&
           target->kind() != Code::KEYED_LOAD_IC));
 
   Heap* heap = target->GetHeap();
   Code* old_target = GetTargetAtAddress(address, constant_pool);
 #ifdef DEBUG
   // STORE_IC and KEYED_STORE_IC use Code::extra_ic_state() to mark
-  // ICs as strict mode. The strict-ness of the IC must be preserved.
+  // ICs as language mode. The language mode of the IC must be preserved.
   if (old_target->kind() == Code::STORE_IC ||
       old_target->kind() == Code::KEYED_STORE_IC) {
-    DCHECK(StoreIC::GetStrictMode(old_target->extra_ic_state()) ==
-           StoreIC::GetStrictMode(target->extra_ic_state()));
+    DCHECK(StoreIC::GetLanguageMode(old_target->extra_ic_state()) ==
+           StoreIC::GetLanguageMode(target->extra_ic_state()));
   }
 #endif
   Assembler::set_target_address_at(address, constant_pool,
                                    target->instruction_start());
   if (heap->gc_state() == Heap::MARK_COMPACT) {
     heap->mark_compact_collector()->RecordCodeTargetPatch(address, target);
   } else {
     heap->incremental_marking()->RecordCodeTargetPatch(address, target);
   }
   PostPatching(address, target, old_target);
 }
 
 
 void IC::set_target(Code* code) {
   SetTargetAtAddress(address(), code, constant_pool());
   target_set_ = true;
 }
 
 
 void LoadIC::set_target(Code* code) {
   // The contextual mode must be preserved across IC patching.
   DCHECK(LoadICState::GetContextualMode(code->extra_ic_state()) ==
          LoadICState::GetContextualMode(target()->extra_ic_state()));
 
   IC::set_target(code);
 }
 
 
 void StoreIC::set_target(Code* code) {
-  // Strict mode must be preserved across IC patching.
-  DCHECK(GetStrictMode(code->extra_ic_state()) ==
-         GetStrictMode(target()->extra_ic_state()));
+  // Language mode must be preserved across IC patching.
+  DCHECK(GetLanguageMode(code->extra_ic_state()) ==
+         GetLanguageMode(target()->extra_ic_state()));
   IC::set_target(code);
 }
 
 
 void KeyedStoreIC::set_target(Code* code) {
-  // Strict mode must be preserved across IC patching.
-  DCHECK(GetStrictMode(code->extra_ic_state()) == strict_mode());
+  // Language mode must be preserved across IC patching.
+  DCHECK(GetLanguageMode(code->extra_ic_state()) == language_mode());
   IC::set_target(code);
 }
 
 
 Code* IC::raw_target() const {
   return GetTargetAtAddress(address(), constant_pool());
 }
 
 void IC::UpdateTarget() { target_ = handle(raw_target(), isolate_); }
 
@@ skipping 51 matching lines @@
 inline Code* IC::get_host() {
   return isolate()
       ->inner_pointer_to_code_cache()
       ->GetCacheEntry(address())
       ->code;
 }
 }
 }  // namespace v8::internal
 
 #endif  // V8_IC_INL_H_