Share SharedFunctionInfo between all functions created for a FunctionTemplateInfo

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index 3c5f4161fd00f8c162a8c0c21903cceeb8e9260f..e197494e6b56176b101af20f5cbb48e0c1da39fd 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -1278,16 +1278,9 @@ Handle<JSFunction> Factory::NewFunctionWithoutPrototype(Handle<String> name,
 
 Handle<JSFunction> Factory::NewFunction(Handle<String> name, Handle<Code> code,
                                         Handle<Object> prototype,
-                                        bool read_only_prototype,
                                         bool is_strict) {
-  // In strict mode, readonly strict map is only available during bootstrap
-  DCHECK(!is_strict || !read_only_prototype ||
-         isolate()->bootstrapper()->IsActive());
-  Handle<Map> map =
-      is_strict ? isolate()->strict_function_map()
-                : read_only_prototype
-                      ? isolate()->sloppy_function_with_readonly_prototype_map()
-                      : isolate()->sloppy_function_map();
+  Handle<Map> map = is_strict ? isolate()->strict_function_map()
+                              : isolate()->sloppy_function_map();
   Handle<JSFunction> result = NewFunction(map, name, code);
   result->set_prototype_or_initial_map(*prototype);
   return result;
@@ -1297,12 +1290,9 @@ Handle<JSFunction> Factory::NewFunction(Handle<String> name, Handle<Code> code,
 Handle<JSFunction> Factory::NewFunction(Handle<String> name, Handle<Code> code,
                                         Handle<Object> prototype,
                                         InstanceType type, int instance_size,
-                                        bool read_only_prototype,
-                                        bool install_constructor,
                                         bool is_strict) {
   // Allocate the function
-  Handle<JSFunction> function =
-      NewFunction(name, code, prototype, read_only_prototype, is_strict);
+  Handle<JSFunction> function = NewFunction(name, code, prototype, is_strict);
 
   ElementsKind elements_kind =
       type == JS_ARRAY_TYPE ? FAST_SMI_ELEMENTS : FAST_HOLEY_SMI_ELEMENTS;
@@ -1313,9 +1303,6 @@ Handle<JSFunction> Factory::NewFunction(Handle<String> name, Handle<Code> code,
   if (!function->shared()->is_resumable()) {
     if (prototype->IsTheHole(isolate())) {
       prototype = NewFunctionPrototype(function);
-    } else if (install_constructor) {
-      JSObject::AddProperty(Handle<JSObject>::cast(prototype),
-                            constructor_string(), function, DONT_ENUM);
     }
   }