Show built-in script names in the debugger

(cherry picked from commit 3b320cd9feb0ce89020f898f0ae5ecc07a25ce51)

modules/gdscript/gdscript.cpp

@@ -296,7 +296,7 @@ ScriptInstance *GDScript::instance_create(Object *p_this) {
 	if (top->native.is_valid()) {
 		if (!ClassDB::is_parent_class(p_this->get_class_name(), top->native->get_name())) {
 			if (ScriptDebugger::get_singleton()) {
-				GDScriptLanguage::get_singleton()->debug_break_parse(get_path(), 1, "Script inherits from native type '" + String(top->native->get_name()) + "', so it can't be instanced in object of type: '" + p_this->get_class() + "'");
+				GDScriptLanguage::get_singleton()->debug_break_parse(_get_debug_path(), 1, "Script inherits from native type '" + String(top->native->get_name()) + "', so it can't be instanced in object of type: '" + p_this->get_class() + "'");
 			}
 			ERR_FAIL_V_MSG(nullptr, "Script inherits from native type '" + String(top->native->get_name()) + "', so it can't be instanced in object of type '" + p_this->get_class() + "'" + ".");
 		}
@@ -533,6 +533,14 @@ void GDScript::_set_subclass_path(Ref<GDScript> &p_sc, const String &p_path) {
 	}
 }
 
+String GDScript::_get_debug_path() const {
+	if ((get_path().empty() || get_path().find("::") != -1) && !get_name().empty()) {
+		return get_name() + " (" + get_path().get_slice("::", 0) + ")";
+	} else {
+		return get_path();
+	}
+}
+
 Error GDScript::reload(bool p_keep_state) {
 	GDScriptLanguage::singleton->lock.lock();
 	bool has_instances = instances.size();
@@ -560,7 +568,7 @@ Error GDScript::reload(bool p_keep_state) {
 	Error err = parser.parse(source, basedir, false, path);
 	if (err) {
 		if (ScriptDebugger::get_singleton()) {
-			GDScriptLanguage::get_singleton()->debug_break_parse(get_path(), parser.get_error_line(), "Parser Error: " + parser.get_error());
+			GDScriptLanguage::get_singleton()->debug_break_parse(_get_debug_path(), parser.get_error_line(), "Parser Error: " + parser.get_error());
 		}
 		_err_print_error("GDScript::reload", path.empty() ? "built-in" : (const char *)path.utf8().get_data(), parser.get_error_line(), ("Parse Error: " + parser.get_error()).utf8().get_data(), ERR_HANDLER_SCRIPT);
 		ERR_FAIL_V(ERR_PARSE_ERROR);
@@ -574,7 +582,7 @@ Error GDScript::reload(bool p_keep_state) {
 	if (err) {
 		if (can_run) {
 			if (ScriptDebugger::get_singleton()) {
-				GDScriptLanguage::get_singleton()->debug_break_parse(get_path(), compiler.get_error_line(), "Parser Error: " + compiler.get_error());
+				GDScriptLanguage::get_singleton()->debug_break_parse(_get_debug_path(), compiler.get_error_line(), "Parser Error: " + compiler.get_error());
 			}
 			_err_print_error("GDScript::reload", path.empty() ? "built-in" : (const char *)path.utf8().get_data(), compiler.get_error_line(), ("Compile Error: " + compiler.get_error()).utf8().get_data(), ERR_HANDLER_SCRIPT);
 			ERR_FAIL_V(ERR_COMPILATION_FAILED);

modules/gdscript/gdscript.h

@@ -116,6 +116,7 @@ class GDScript : public Script {
 	GDScriptInstance *_create_instance(const Variant **p_args, int p_argcount, Object *p_owner, bool p_isref, Variant::CallError &r_error);
 
 	void _set_subclass_path(Ref<GDScript> &p_sc, const String &p_path);
+	String _get_debug_path() const;
 
 #ifdef TOOLS_ENABLED
 	Set<PlaceHolderScriptInstance *> placeholders;