patch 9.0.1842: Need more accurate profiling

Problem:  Need more accurate profiling
Solution: Improve profiling results

closes: #12192

Reduce overhead of checking if a function should be profiled,
by caching results of checking (which are done with regexp).

Cache uf_hash for uf_name in ufunc_T.

Cache cleared when regexps are changed.

Break at first match for has_profiling lookup.

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Ernie Rael <errael@raelity.com>
diff --git a/src/scriptfile.c b/src/scriptfile.c
index aff964e..e9c124e 100644
--- a/src/scriptfile.c
+++ b/src/scriptfile.c
@@ -1721,7 +1721,7 @@
 	int	forceit;
 
 	// Check if we do profiling for this script.
-	if (!si->sn_prof_on && has_profiling(TRUE, si->sn_name, &forceit))
+	if (!si->sn_prof_on && has_profiling(TRUE, si->sn_name, &forceit, NULL))
 	{
 	    script_do_profile(si);
 	    si->sn_pr_force = forceit;