Change core to use is_invariant_string()

is_ascii_string's name has misled me in the past; the new name is
clearer.

1 files changed, 1 insertions, 1 deletions

diff --git a/toke.c b/toke.c
index 9a01103439..236acd5adc 100644
--- a/toke.c
+++ b/toke.c
@@ -1968,7 +1968,7 @@ S_newSV_maybe_utf8(pTHX_ const char *const start, STRLEN len)
     SV * const sv = newSVpvn_utf8(start, len,
 				  !IN_BYTES
 				  && UTF
-				  && !is_ascii_string((const U8*)start, len)
+				  && !is_invariant_string((const U8*)start, len)
 				  && is_utf8_string((const U8*)start, len));
     return sv;
 }