Clone both descriptor and data array when compiling in background

runtime/vm/compiler.cc

Index: runtime/vm/compiler.cc
diff --git a/runtime/vm/compiler.cc b/runtime/vm/compiler.cc
index adcbe33c96713a980e6e1c6a4eb782fa1a2ffe9f..610c0b16325a4f861744d8a8408cd77991214f6c 100644
--- a/runtime/vm/compiler.cc
+++ b/runtime/vm/compiler.cc
@@ -606,8 +606,8 @@ bool CompileParsedFunctionHelper::Compile(CompilationPipeline* pipeline) {
 
           // 'Freeze' ICData in background compilation so that it does not
           // change while compiling.
-          const bool clone_descriptors = Compiler::IsBackgroundCompilation();
-          function.RestoreICDataMap(ic_data_array, clone_descriptors);
+          const bool clone_ic_data = Compiler::IsBackgroundCompilation();
+          function.RestoreICDataMap(ic_data_array, clone_ic_data);
 
           if (Compiler::IsBackgroundCompilation() &&
               (function.ic_data_array() == Array::null())) {