lib/string_exp: add a missing FFI `import UnicodeChar.len`

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

diff --git a/lib/string_experimentations/utf8_noindex.nit b/lib/string_experimentations/utf8_noindex.nit
index 323f0ab..bf49334 100644 (file)
--- a/lib/string_experimentations/utf8_noindex.nit
+++ b/lib/string_experimentations/utf8_noindex.nit
@@ -73,7 +73,7 @@ extern class UnicodeChar `{ uint32_t* `}
        # Returns the Unicode code point representing the character
        #
        # Note : A unicode character might not be a visible glyph, but it will be used to determine canonical equivalence
-       fun code_point: Int `{
+       fun code_point: Int import UnicodeChar.len `{
                uint32_t val = *recv;
                uint32_t ret = 0;
                switch(UnicodeChar_len(recv)){