lib/cocoa: fix NSString::to_s to use to_s_with_copy

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/lib/cocoa/foundation.nit b/lib/cocoa/foundation.nit
index 33114e4..3a6fa98 100644 (file)
--- a/lib/cocoa/foundation.nit
+++ b/lib/cocoa/foundation.nit
@@ -37,7 +37,7 @@ extern class NSString in "ObjC" `{ NSString * `}
        # Get an UTF8 encoded `char*` copy of `self`
        fun utf8_string: NativeString in "ObjC" `{ return (char *)[self UTF8String]; `}
 
-       redef fun to_s do return utf8_string.to_s
+       redef fun to_s do return utf8_string.to_s_with_copy
 end
 
 redef class NativeString