Preview of a first step towards unification of hydrogen calls

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index a1fa8b040c65cc529deb60ccf51256dab8f1f5c7..bc24b71a678b0c6b3d24ba57ed35c6c9b46c4ec4 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -1550,6 +1550,7 @@ Isolate::Isolate()
       regexp_stack_(NULL),
       date_cache_(NULL),
       code_stub_interface_descriptors_(NULL),
+      call_descriptors_(NULL),
       // TODO(bmeurer) Initialized lazily because it depends on flags; can
       // be fixed once the default isolate cleanup is done.
       random_number_generator_(NULL),
@@ -1758,6 +1759,9 @@ Isolate::~Isolate() {
   delete[] code_stub_interface_descriptors_;
   code_stub_interface_descriptors_ = NULL;
 
+  delete[] call_descriptors_;
+  call_descriptors_ = NULL;
+
   delete regexp_stack_;
   regexp_stack_ = NULL;
 
@@ -1948,6 +1952,8 @@ bool Isolate::Init(Deserializer* des) {
   date_cache_ = new DateCache();
   code_stub_interface_descriptors_ =
       new CodeStubInterfaceDescriptor[CodeStub::NUMBER_OF_IDS];
+  call_descriptors_ =
+      new CallInterfaceDescriptor[NUMBER_OF_CALL_DESCRIPTORS];
   cpu_profiler_ = new CpuProfiler(this);
   heap_profiler_ = new HeapProfiler(heap());
 
@@ -2109,6 +2115,8 @@ bool Isolate::Init(Deserializer* des) {
     NewStringAddStub::InstallDescriptors(this);
   }
 
+  CallDescriptors::InitializeForIsolate(this);
+
   initialized_from_snapshot_ = (des != NULL);
 
   return true;
@@ -2286,6 +2294,13 @@ CodeStubInterfaceDescriptor*
 }
 
 
+CallInterfaceDescriptor*
+    Isolate::call_descriptor(CallDescriptorKey index) {
+  ASSERT(0 <= index && index < NUMBER_OF_CALL_DESCRIPTORS);
+  return &call_descriptors_[index];
+}
+
+
 Object* Isolate::FindCodeObject(Address a) {
   return inner_pointer_to_code_cache()->GcSafeFindCodeForInnerPointer(a);
 }