Integrate:

Integrate:
[ 22994]
More @INC test fixes

[ 22998]
Correct detection of absent modules. Based on

Subject: [PATCH] Config{extensions} uses filesystem names as extensions
Message-ID: <Pine.SOL.4.58.0406241505530.14039@maxwell.phys.lafayette.edu>

with improvements from Marcus Holland-Moritz

[ 23028]
/usr/bin/locale steadfastly delivers 8 bit output independent of
LC_ALL. So when perl's expecting utf8, things don't quite work right.
This has become visible since fix 22842
p4raw-link: @23028 on //depot/perl: d281a6ac99b66dc149fbd56ba67cd73e3e87afb9
p4raw-link: @22998 on //depot/perl: 98641f606c65e71cca89f9a694e2796b5a21cbd8
p4raw-link: @22994 on //depot/perl: 996dc718da1f4671fb1ddb6550d03837abe87d27

p4raw-id: //depot/maint-5.8/perl@23035
p4raw-branched: from //depot/perl@23034 'branch in' t/op/threads.t
	(@22446..)
p4raw-integrated: from //depot/perl@23034 'copy in' lib/locale.t
	(@19662..) t/uni/chomp.t t/uni/tr_7jis.t t/uni/tr_eucjp.t
	t/uni/tr_sjis.t t/uni/tr_utf8.t (@22424..) t/io/crlf.t
	(@22947..) ext/Devel/PPPort/t/test.t (@22953..)
	ext/threads/shared/t/disabled.t (@22954..)
	ext/PerlIO/t/scalar.t ext/PerlIO/t/via.t (@22956..)
	lib/PerlIO/via/t/QuotedPrint.t (@22957..) lib/h2xs.t (@22965..)
	lib/DB.t lib/Dumpvalue.t lib/dumpvar.t (@22967..) 'merge in'
	lib/Tie/RefHash.t (@22966..) lib/autouse.t lib/overload.t
	(@22967..)