rta: use `to_s_with_length` instead of `to_s` in literal strings

This is more conform to the current nitg implementations.

Signed-off-by: Jean Privat <jean@pryen.org>

diff --git a/src/rapid_type_analysis.nit b/src/rapid_type_analysis.nit
index 3c32689..be9ea34 100644 (file)
--- a/src/rapid_type_analysis.nit
+++ b/src/rapid_type_analysis.nit
@@ -428,7 +428,7 @@ redef class AStringFormExpr
        do
                var native = v.get_class("NativeString").mclass_type
                v.add_type(native)
-               var prop = v.get_method(native, "to_s")
+               var prop = v.get_method(native, "to_s_with_length")
                v.add_monomorphic_send(native, prop)
        end
 end