patch 9.0.0634: evaluating "expr" options has more overhead than needed
Problem: Evaluating "expr" options has more overhead than needed.
Solution: Use call_simple_func() for 'foldtext', 'includeexpr', 'printexpr',
"expr" of 'spellsuggest', 'diffexpr', 'patchexpr', 'balloonexpr',
'formatexpr', 'indentexpr' and 'charconvert'.
diff --git a/src/fold.c b/src/fold.c
index 83d1cf6..a226d6f 100644
--- a/src/fold.c
+++ b/src/fold.c
@@ -1960,7 +1960,8 @@
++emsg_off; // handle exceptions, but don't display errors
text = eval_to_string_safe(wp->w_p_fdt,
- was_set_insecurely((char_u *)"foldtext", OPT_LOCAL), TRUE);
+ was_set_insecurely((char_u *)"foldtext", OPT_LOCAL),
+ TRUE, TRUE);
--emsg_off;
if (text == NULL || did_emsg)