lexer: Fix negative 'n0' and 'n1' in lex_source_contains_macro_call().

diff --git a/src/language/lexer/lexer.c b/src/language/lexer/lexer.c
index 47c019ec26dfe4208984bc23264aba69f9623aa6..7d40ce1cd50a39ad70baabc9547855d74d5caada 100644 (file)
--- a/src/language/lexer/lexer.c
+++ b/src/language/lexer/lexer.c
@@ -1868,7 +1868,7 @@ lex_source_syntax__ (const struct lex_source *src, int ofs0, int ofs1)
 static bool
 lex_source_contains_macro_call (struct lex_source *src, int n0, int n1)
 {
-  for (size_t i = n0; i <= n1; i++)
+  for (int i = n0; i <= n1; i++)
     if (lex_source_next__ (src, i)->macro_rep)
       return true;
   return false;