[interpreter] Make setting of function data more resilient.

test/cctest/heap/test-heap.cc

Index: test/cctest/heap/test-heap.cc
diff --git a/test/cctest/heap/test-heap.cc b/test/cctest/heap/test-heap.cc
index 88aee8adf89e4794ded2445a3261d83a01ca650f..e117ab8029476ef817fbd0be297692a070c589a7 100644
--- a/test/cctest/heap/test-heap.cc
+++ b/test/cctest/heap/test-heap.cc
@@ -6277,6 +6277,7 @@ static void RemoveCodeAndGC(const v8::FunctionCallbackInfo<v8::Value>& args) {
   Handle<JSFunction> fun = Handle<JSFunction>::cast(obj);
   fun->ReplaceCode(*isolate->builtins()->CompileLazy());
   fun->shared()->ReplaceCode(*isolate->builtins()->CompileLazy());
+  fun->shared()->ClearBytecodeArray();  // Bytecode is code too.
   isolate->heap()->CollectAllAvailableGarbage("remove code and gc");
 }