First part of new ICData infrastructure: use a wrapper object instead of an array.

runtime/vm/code_generator_ia32.cc

Index: runtime/vm/code_generator_ia32.cc
===================================================================
--- runtime/vm/code_generator_ia32.cc	(revision 4401)
+++ runtime/vm/code_generator_ia32.cc	(working copy)
@@ -12,7 +12,6 @@
 #include "vm/class_finalizer.h"
 #include "vm/dart_entry.h"
 #include "vm/debugger.h"
-#include "vm/ic_data.h"
 #include "vm/longjump.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
@@ -449,9 +448,12 @@
   // Set up the function name and number of arguments (including the receiver)
   // to the InstanceCall stub which will resolve the correct entrypoint for
   // the operator and call it.
-  ICData ic_data(function_name, num_args_checked);
-  ASSERT(ic_data.NumberOfArgumentsChecked() == num_args_checked);
-  __ LoadObject(ECX, Array::ZoneHandle(ic_data.data()));
+  ICData& ic_data = ICData::ZoneHandle();
+  ic_data = ICData::New(parsed_function().function(),
+                        function_name,
+                        node_id,
+                        num_args_checked);
+  __ LoadObject(ECX, ic_data);
   __ LoadObject(EDX, ArgumentsDescriptor(num_arguments,
                                          optional_arguments_names));
   uword label_address = 0;
@@ -690,8 +692,13 @@
                           kClosureArgumentMismatchRuntimeEntry);
     } else {
       // Invoke noSuchMethod function.
-      ICData ic_data(String::Handle(function.name()), 1);
-      __ LoadObject(ECX, Array::ZoneHandle(ic_data.data()));
+      const int kNumArgsChecked = 1;
+      ICData& ic_data = ICData::ZoneHandle();
+      ic_data = ICData::New(parsed_function().function(),
+                            String::Handle(function.name()),
+                            AstNode::kNoId,
+                            kNumArgsChecked);
+      __ LoadObject(ECX, ic_data);
       // EBP : points to previous frame pointer.
       // EBP + 4 : points to return address.
       // EBP + 8 : address of last argument (arg n-1).