Remove getters that duplicate FunctionKind in SharedFunctionInfo and ParseInfo

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index 087aad36936c0c2f4eb8ce9e2a1f3eb37dd5bd61..163e86484dfb7f4d9f1ebd9c9ea02a8bf0ad51c2 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -1358,7 +1358,7 @@ Handle<JSFunction> Factory::NewFunction(Handle<String> name, Handle<Code> code,
   // TODO(littledan): Why do we have this is_generator test when
   // NewFunctionPrototype already handles finding an appropriately
   // shared prototype?
-  if (!function->shared()->is_resumable()) {
+  if (!IsResumableFunction(function->shared()->kind())) {
     if (prototype->IsTheHole(isolate())) {
       prototype = NewFunctionPrototype(function);
     }
@@ -1384,12 +1384,11 @@ Handle<JSObject> Factory::NewFunctionPrototype(Handle<JSFunction> function) {
   // can be from a different context.
   Handle<Context> native_context(function->context()->native_context());
   Handle<Map> new_map;
-  if (function->shared()->is_resumable()) {
+  if (IsResumableFunction(function->shared()->kind())) {
     // Generator and async function prototypes can share maps since they
     // don't have "constructor" properties.
     new_map = handle(native_context->generator_object_prototype_map());
   } else {
-    CHECK(!function->shared()->is_async());
     // Each function prototype gets a fresh map to avoid unwanted sharing of
     // maps between prototypes of different constructors.
     Handle<JSFunction> object_function(native_context->object_function());
@@ -1400,7 +1399,7 @@ Handle<JSObject> Factory::NewFunctionPrototype(Handle<JSFunction> function) {
   DCHECK(!new_map->is_prototype_map());
   Handle<JSObject> prototype = NewJSObjectFromMap(new_map);
 
-  if (!function->shared()->is_resumable()) {
+  if (!IsResumableFunction(function->shared()->kind())) {
     JSObject::AddProperty(prototype, constructor_string(), function, DONT_ENUM);
   }
 
@@ -1739,7 +1738,7 @@ void Factory::NewJSArrayStorage(Handle<JSArray> array,
 
 Handle<JSGeneratorObject> Factory::NewJSGeneratorObject(
     Handle<JSFunction> function) {
-  DCHECK(function->shared()->is_resumable());
+  DCHECK(IsResumableFunction(function->shared()->kind()));
   JSFunction::EnsureHasInitialMap(function);
   Handle<Map> map(function->initial_map());
   DCHECK_EQ(JS_GENERATOR_OBJECT_TYPE, map->instance_type());