Fix tooled script property values missing

Author: Geequlim

ecmascript.cpp

@@ -56,6 +56,7 @@ ScriptInstance *ECMAScript::instance_create(Object *p_this) {
 	instance->owner = p_this;
 	instance->binder = binder;
 	instance->ecma_object = ecma_instance;
+	instance->ecma_class = cls;
 	instance->owner->set_script_instance(instance);
 	instances.insert(p_this);
 	return instance;
@@ -99,6 +100,7 @@ Error ECMAScript::reload(bool p_keep_state) {
 	} else {
 #ifdef TOOLS_ENABLED
 		set_last_modified_time(FileAccess::get_modified_time(script_path));
+		p_keep_state = true;
 
 		for (Set<Object *>::Element *E = instances.front(); E; E = E->next()) {
 			Object *owner = E->get();

ecmascript_instance.cpp

@@ -64,7 +64,7 @@ ScriptLanguage *ECMAScriptInstance::get_language() {
 ECMAScriptInstance::ECMAScriptInstance() {
 	owner = NULL;
 	binder = NULL;
-	ecma_object.clear();
+	ecma_class = NULL;
 }
 
 ECMAScriptInstance::~ECMAScriptInstance() {

ecmascript_instance.h

@@ -14,7 +14,7 @@ class ECMAScriptInstance : public ScriptInstance {
 	Ref<ECMAScript> script;
 	ECMAScriptGCHandler ecma_object;
 	ECMAScriptBinder *binder;
-	ECMAClassInfo *ecma_class;
+	const ECMAClassInfo *ecma_class;
 
 public:
 	virtual bool set(const StringName &p_name, const Variant &p_value);