Save ICData of unoptimized code in the function, thus preserving it across repated unoptimized comp…

runtime/vm/flow_graph_compiler.h

Index: runtime/vm/flow_graph_compiler.h
===================================================================
--- runtime/vm/flow_graph_compiler.h	(revision 37375)
+++ runtime/vm/flow_graph_compiler.h	(working copy)
@@ -457,6 +457,21 @@
   static void SortICDataByCount(const ICData& ic_data,
                                 GrowableArray<CidTarget>* sorted);
 
+  // Use in unoptimized compilation to preserve/reuse ICData.
+  const ICData* GetOrAddInstanceCallICData(intptr_t deopt_id,
+                                           const String& target_name,
+                                           const Array& arguments_descriptor,
+                                           intptr_t num_args_tested);
+
+  const ICData* GetOrAddStaticCallICData(intptr_t deopt_id,
+                                         const Function& target,
+                                         const Array& arguments_descriptor,
+                                         intptr_t num_args_tested);
+
+  const ZoneGrowableArray<const ICData*>& deopt_id_to_ic_data() const {
+    return *deopt_id_to_ic_data_;
+  }
+
  private:
   friend class CheckStackOverflowSlowPath;  // For pending_deoptimization_env_.
 
@@ -603,6 +618,8 @@
   intptr_t patch_code_pc_offset_;
   intptr_t lazy_deopt_pc_offset_;
 
+  ZoneGrowableArray<const ICData*>* deopt_id_to_ic_data_;
+
   DISALLOW_COPY_AND_ASSIGN(FlowGraphCompiler);
 };