Integrate:

Integrate:
[ 21105]
Regen perlapi.

[ 21106]
A version of change #21073 that works.

[ 21107]
Subject: [PATCH] warnings.pl: each thread 10K smaller
Message-Id: <p05111b16bb827ce551da@[192.168.56.4]>
p4raw-link: @21107 on //depot/perl: 71a1411e8309f445a8e3afde57ce393886ff905f
p4raw-link: @21106 on //depot/perl: 03aa69f98a1004fda52fa77f324e5463bea07c1e
p4raw-link: @21105 on //depot/perl: 0ee80f49cea8091fad0067f2b44e8342aa546e97
p4raw-link: @21073 on //depot/perl: b5a808db3c007cbb4159178941346ac3c6f968a7

p4raw-id: //depot/maint-5.8/perl@21108
p4raw-integrated: from //depot/perl@21104 'copy in'
	ext/PerlIO/scalar/scalar.xs ext/PerlIO/t/scalar.t (@21082..)
	'merge in' lib/warnings.pm warnings.pl (@20701..)
	pod/perlapi.pod (@20941..)