patch 8.2.4115: cannot use a method with a complex expression

Problem:    Cannot use a method with a complex expression.
Solution:   Evaluate the expression after "->" and use the result.
diff --git a/src/errors.h b/src/errors.h
index 5e9b6af..e576f81 100644
--- a/src/errors.h
+++ b/src/errors.h
@@ -3212,4 +3212,6 @@
 	INIT(= N_("E1263: Using autoload in a script not under an autoload directory"));
 EXTERN char e_autoload_import_cannot_use_absolute_or_relative_path[]
 	INIT(= N_("E1264: Autoload import cannot use absolute or relative path: %s"));
+EXTERN char e_cannot_use_partial_here[]
+	INIT(= N_("E1265: Cannot use a partial here"));
 #endif