[api] Introduce fast instantiations cache

src/bootstrapper.cc

 // Copyright 2014 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/bootstrapper.h"
 
 #include "src/accessors.h"
 #include "src/api-natives.h"
 #include "src/base/ieee754.h"
 #include "src/code-stubs.h"
@@ skipping 2972 matching lines @@
     native_context()->set_internal_array_function(*array_function);
     InstallInternalArray(utils, "InternalPackedArray", FAST_ELEMENTS);
   }
 
   // Run the rest of the native scripts.
   while (builtin_index < Natives::GetBuiltinsCount()) {
     if (!Bootstrapper::CompileBuiltin(isolate(), builtin_index++)) return false;
   }
 
   if (!CallUtilsFunction(isolate(), "PostNatives")) return false;
+  auto fast_template_instantiations_cache = isolate()->factory()->NewFixedArray(
+      TemplateInfo::kFastTemplateInstantiationsCacheSize);
+  native_context()->set_fast_template_instantiations_cache(
+      *fast_template_instantiations_cache);
 
-  auto template_instantiations_cache = UnseededNumberDictionary::New(
+  auto slow_template_instantiations_cache = UnseededNumberDictionary::New(
       isolate(), ApiNatives::kInitialFunctionCacheSize);
-  native_context()->set_template_instantiations_cache(
-      *template_instantiations_cache);
+  native_context()->set_slow_template_instantiations_cache(
+      *slow_template_instantiations_cache);
 
   // Store the map for the %ObjectPrototype% after the natives has been compiled
   // and the Object function has been set up.
   Handle<JSFunction> object_function(native_context()->object_function());
   DCHECK(JSObject::cast(object_function->initial_map()->prototype())
              ->HasFastProperties());
   native_context()->set_object_function_prototype_map(
       HeapObject::cast(object_function->initial_map()->prototype())->map());
 
   // Set up the map for Object.create(null) instances.
@@ skipping 1040 matching lines @@
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   DCHECK(!IsActive());
 }
 
 }  // namespace internal
 }  // namespace v8