[regexp] Port remaining JS functions in regexp.js

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index ff12defefb3b4c2c448cc2baee863dcce7c4ebc4..9cfd627e4533d95a294855fdb418f1345fb087e6 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -1865,6 +1865,51 @@ void Genesis::InitializeGlobal(Handle<JSGlobalObject> global_object,
     initial_map->set_unused_property_fields(0);
     initial_map->set_instance_size(initial_map->instance_size() +
                                    num_fields * kPointerSize);
+
+    {  // Internal: RegExpInitialize
+      Handle<JSFunction> function = isolate->factory()->NewFunction(
+          isolate->factory()->empty_string(),
+          isolate->builtins()->RegExpInitialize(), JS_OBJECT_TYPE,
+          JSObject::kHeaderSize);
+      function->shared()->DontAdaptArguments();
+      function->shared()->set_length(3);
+      function->shared()->set_native(true);
+      isolate->native_context()->set(Context::REGEXP_INITIALIZE, *function);
+    }
+
+    {  // Internal: RegExpIsRegExp
+      Handle<JSFunction> function = isolate->factory()->NewFunction(
+          isolate->factory()->empty_string(),
+          isolate->builtins()->RegExpIsRegExp(), JS_OBJECT_TYPE,
+          JSObject::kHeaderSize);
+      function->shared()->DontAdaptArguments();
+      function->shared()->set_length(1);
+      function->shared()->set_native(true);
+      isolate->native_context()->set(Context::REGEXP_IS_REGEXP, *function);
+    }
+
+    {  // Internal: RegExpInternalMatch
+      Handle<JSFunction> function =
+          factory->NewFunction(isolate->factory()->empty_string(),
+                               isolate->builtins()->RegExpInternalMatch(),
+                               JS_OBJECT_TYPE, JSObject::kHeaderSize);
+      function->shared()->set_internal_formal_parameter_count(2);
+      function->shared()->set_length(2);
+      function->shared()->set_native(true);
+      isolate->native_context()->set(Context::REGEXP_INTERNAL_MATCH, *function);
+    }
+
+    {  // Internal: RegExpInternalReplace
+      Handle<JSFunction> function = isolate->factory()->NewFunction(
+          isolate->factory()->empty_string(),
+          isolate->builtins()->RegExpInternalReplace(), JS_OBJECT_TYPE,
+          JSObject::kHeaderSize);
+      function->shared()->set_internal_formal_parameter_count(3);
+      function->shared()->set_length(3);
+      function->shared()->set_native(true);
+      isolate->native_context()->set(Context::REGEXP_INTERNAL_REPLACE,
+                                     *function);
+    }
   }
 
   {  // -- E r r o r