Store SharedFunctionInfos of a Script in a FixedArray indexed by their ID

src/runtime/runtime-liveedit.cc

Index: src/runtime/runtime-liveedit.cc
diff --git a/src/runtime/runtime-liveedit.cc b/src/runtime/runtime-liveedit.cc
index a19ccaa5847140b093efb65cce16c3a031624292..7cd60d32f1fb0d453f9e30b131f7a1242503ffea 100644
--- a/src/runtime/runtime-liveedit.cc
+++ b/src/runtime/runtime-liveedit.cc
@@ -100,15 +100,31 @@ RUNTIME_FUNCTION(Runtime_LiveEditReplaceScript) {
   }
 }
 
+// Recreate the shared function infos array after changing the IDs of all
+// SharedFunctionInfos.
+RUNTIME_FUNCTION(Runtime_LiveEditFixupScript) {
+  HandleScope scope(isolate);
+  CHECK(isolate->debug()->live_edit_enabled());
+  DCHECK(args.length() == 2);

[Toon Verwaest, 2016/12/06 21:10:14]

DCHECK_EQ

[jochen (gone - plz use gerrit), 2016/12/07 15:57:01]

done

+  CONVERT_ARG_CHECKED(JSValue, script_value, 0);
+  CONVERT_NUMBER_CHECKED(int, max_function_literal_id, Int32, args[1]);

[jgruber, 2016/12/07 08:31:27]

Nit: CONVERT_INT32_ARG_CHECKED here and below.

[jochen (gone - plz use gerrit), 2016/12/07 15:57:01]

done

+
+  CHECK(script_value->value()->IsScript());
+  Handle<Script> script(Script::cast(script_value->value()));
+
+  LiveEdit::FixupScript(script, max_function_literal_id);
+  return isolate->heap()->undefined_value();
+}
 
 RUNTIME_FUNCTION(Runtime_LiveEditFunctionSourceUpdated) {
   HandleScope scope(isolate);
   CHECK(isolate->debug()->live_edit_enabled());
-  DCHECK(args.length() == 1);
+  DCHECK(args.length() == 2);
   CONVERT_ARG_HANDLE_CHECKED(JSArray, shared_info, 0);
+  CONVERT_NUMBER_CHECKED(int, new_function_literal_id, Int32, args[1]);
   CHECK(SharedInfoWrapper::IsInstance(shared_info));
 
-  LiveEdit::FunctionSourceUpdated(shared_info);
+  LiveEdit::FunctionSourceUpdated(shared_info, new_function_literal_id);
   return isolate->heap()->undefined_value();
 }