run-tests: fixed warn detection on failures with too many output
The state "warned" was reported too often. The problem fixed here is that
warnonly was only reset when a line did not match. When there was a line too
much, warnonly remained set.
Fix this by setting more states to warnonly.
More negative testing (testing on result "Failed") has been done this time.
$ hg init
$ python -c 'file("a", "wb").write("confuse str.splitlines\nembedded\rnewline\n")'
$ hg ci -Ama -d '1 0'
adding a
$ echo clean diff >> a
$ hg ci -mb -d '2 0'
$ hg diff -r0 -r1
diff -r 107ba6f817b5 -r 310ce7989cdc a
--- a/a Thu Jan 01 00:00:01 1970 +0000
+++ b/a Thu Jan 01 00:00:02 1970 +0000
@@ -1,2 +1,3 @@
confuse str.splitlines
embedded\r (no-eol) (esc)
newline
+clean diff