Introduce LanguageMode, drop StrictMode.

src/compilation-cache.cc

 // Copyright 2011 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.
 
 #include "src/v8.h"
 
 #include "src/assembler.h"
 #include "src/compilation-cache.h"
 #include "src/serialize.h"
 
@@ skipping 185 matching lines @@
                                  Handle<SharedFunctionInfo> function_info) {
   HandleScope scope(isolate());
   Handle<CompilationCacheTable> table = GetFirstTable();
   SetFirstTable(
       CompilationCacheTable::Put(table, source, context, function_info));
 }
 
 
 MaybeHandle<SharedFunctionInfo> CompilationCacheEval::Lookup(
     Handle<String> source, Handle<SharedFunctionInfo> outer_info,
-    StrictMode strict_mode, int scope_position) {
+    LanguageMode language_mode, int scope_position) {
   HandleScope scope(isolate());
   // Make sure not to leak the table into the surrounding handle
   // scope. Otherwise, we risk keeping old tables around even after
   // having cleared the cache.
   Handle<Object> result = isolate()->factory()->undefined_value();
   int generation;
   for (generation = 0; generation < generations(); generation++) {
     Handle<CompilationCacheTable> table = GetTable(generation);
-    result = table->LookupEval(source, outer_info, strict_mode, scope_position);
+    result =
+        table->LookupEval(source, outer_info, language_mode, scope_position);
     if (result->IsSharedFunctionInfo()) break;
   }
   if (result->IsSharedFunctionInfo()) {
     Handle<SharedFunctionInfo> function_info =
         Handle<SharedFunctionInfo>::cast(result);
     if (generation != 0) {
       Put(source, outer_info, function_info, scope_position);
     }
     isolate()->counters()->compilation_cache_hits()->Increment();
     return scope.CloseAndEscape(function_info);
@@ skipping 69 matching lines @@
   if (!IsEnabled()) return MaybeHandle<SharedFunctionInfo>();
 
   return script_.Lookup(source, name, line_offset, column_offset,
                         is_embedder_debug_script, is_shared_cross_origin,
                         context);
 }
 
 
 MaybeHandle<SharedFunctionInfo> CompilationCache::LookupEval(
     Handle<String> source, Handle<SharedFunctionInfo> outer_info,
-    Handle<Context> context, StrictMode strict_mode, int scope_position) {
+    Handle<Context> context, LanguageMode language_mode, int scope_position) {
   if (!IsEnabled()) return MaybeHandle<SharedFunctionInfo>();
 
   MaybeHandle<SharedFunctionInfo> result;
   if (context->IsNativeContext()) {
     result =
-        eval_global_.Lookup(source, outer_info, strict_mode, scope_position);
+        eval_global_.Lookup(source, outer_info, language_mode, scope_position);
   } else {
     DCHECK(scope_position != RelocInfo::kNoPosition);
-    result = eval_contextual_.Lookup(source, outer_info, strict_mode,
+    result = eval_contextual_.Lookup(source, outer_info, language_mode,
                                      scope_position);
   }
   return result;
 }
 
 
 MaybeHandle<FixedArray> CompilationCache::LookupRegExp(Handle<String> source,
                                                        JSRegExp::Flags flags) {
   if (!IsEnabled()) return MaybeHandle<FixedArray>();
 
@@ skipping 72 matching lines @@
 }
 
 
 void CompilationCache::Disable() {
   enabled_ = false;
   Clear();
 }
 
 
 } }  // namespace v8::internal