Reland and fix "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 f6e880f61062e4f6286d48089d83d77812b89f55..c37c56e4f75b6c0bb2faa7fa70f00e055ebe3c16 100644
--- a/src/code-stubs.cc
+++ b/src/code-stubs.cc
@@ -43,6 +43,7 @@ CodeStubInterfaceDescriptor::CodeStubInterfaceDescriptor()
     : register_param_count_(-1),
       stack_parameter_count_(no_reg),
       hint_stack_parameter_count_(-1),
+      continuation_type_(NORMAL_CONTINUATION),
       function_mode_(NOT_JS_FUNCTION_STUB_MODE),
       register_params_(NULL),
       deoptimization_handler_(NULL),
@@ -51,6 +52,11 @@ CodeStubInterfaceDescriptor::CodeStubInterfaceDescriptor()
       has_miss_handler_(false) { }
 
 
+void CodeStub::GenerateStubsRequiringBuiltinsAheadOfTime(Isolate* isolate) {
+  StubFailureTailCallTrampolineStub::GenerateAheadOfTime(isolate);
+}
+
+
 bool CodeStub::FindCodeInCache(Code** code_out, Isolate* isolate) {
   UnseededNumberDictionary* stubs = isolate->heap()->code_stubs();
   int index = stubs->FindEntry(GetKey());
@@ -1109,6 +1115,12 @@ 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) {