Add support for keyed-call on arrays of fast elements

src/code-stubs.cc

Index: src/code-stubs.cc
diff --git a/src/code-stubs.cc b/src/code-stubs.cc
index ace4af42a9e0797723a242e8873c8ab9d7825a50..5d826e84f62c0f61d92682e98c0399a167a26957 100644
--- a/src/code-stubs.cc
+++ b/src/code-stubs.cc
@@ -43,6 +43,7 @@ CodeStubInterfaceDescriptor::CodeStubInterfaceDescriptor()
     : register_param_count_(-1),
       stack_parameter_count_(NULL),
       hint_stack_parameter_count_(-1),
+      continuation_type_(NORMAL_CONTINUATION),
       function_mode_(NOT_JS_FUNCTION_STUB_MODE),
       register_params_(NULL),
       deoptimization_handler_(NULL),
@@ -730,6 +731,12 @@ void StubFailureTrampolineStub::GenerateAheadOfTime(Isolate* isolate) {
 }
 
 
+void StubFailureTailCallTrampolineStub::GenerateAheadOfTime(Isolate* isolate) {
+  StubFailureTailCallTrampolineStub stub;
+  stub.GetCode(isolate)->set_is_pregenerated(true);
+}
+
+
 void ProfileEntryHookStub::EntryHookTrampoline(intptr_t function,
                                                intptr_t stack_pointer,
                                                Isolate* isolate) {