Clone both descriptor and data array when compiling in background

runtime/vm/source_report.cc

Index: runtime/vm/source_report.cc
diff --git a/runtime/vm/source_report.cc b/runtime/vm/source_report.cc
index 3b9398f01e9a7025c9067e8873a5b40f31d72ddc..bbd35ab83e52395f7427e1e11bbcecf224416e26 100644
--- a/runtime/vm/source_report.cc
+++ b/runtime/vm/source_report.cc
@@ -118,7 +118,7 @@ void SourceReport::PrintCallSitesData(JSONObject* jsobj,
 
   ZoneGrowableArray<const ICData*>* ic_data_array =
       new(zone()) ZoneGrowableArray<const ICData*>();
-  function.RestoreICDataMap(ic_data_array, false /* clone descriptors */);
+  function.RestoreICDataMap(ic_data_array, false /* clone ic-data */);
   const PcDescriptors& descriptors = PcDescriptors::Handle(
       zone(), code.pc_descriptors());
 
@@ -150,7 +150,7 @@ void SourceReport::PrintCoverageData(JSONObject* jsobj,
 
   ZoneGrowableArray<const ICData*>* ic_data_array =
       new(zone()) ZoneGrowableArray<const ICData*>();
-  function.RestoreICDataMap(ic_data_array, false /* clone descriptors */);
+  function.RestoreICDataMap(ic_data_array, false /* clone ic-data */);
   const PcDescriptors& descriptors = PcDescriptors::Handle(
       zone(), code.pc_descriptors());