* diagnostic.c (warning): Accept parameter to classify warning option.
(warning0): New, for when a pointer to an error() like function is needed.
* errors.c (warning): Likewise.
* errors.h (warning, warning0): Adjust prototypes.
* toplev.h (warning, warning0): Likewise.

* attribs.c, builtins.c, c-common.c, c-decl.c, c-format.c,
c-gimplify.c, c-lex.c, c-objc-common.c, c-opts.c, c-parser.c,
c-pragma.c, c-typeck.c, calls.c, cgraph.c, coverage.c, emit-rtl.c,
fold-const.c, fortran/trans-decl.c, function.c, gcse.c,
genautomata.c, haifa-sched.c, opts.c, passes.c, regclass.c,
reload1.c, stmt.c, stor-layout.c, toplev.c, tree-cfg.c,
tree-dump.c, tree-inline.c, tree-mudflap.c, tree-optimize.c,
tree-ssa.c, tree.c, varasm.c: Adjust warning() callers.

* config/alpha/alpha.c, config/arc/arc.c, config/arm/arm.c,
config/avr/avr.c, config/bfin/bfin.c, config/c4x/c4x-c.c,
config/c4x/c4x.c, config/cris/cris.c, config/darwin-c.c,
config/darwin.c, config/darwin.h, config/h8300/h8300.c,
config/i386/cygming.h, config/i386/djgpp.h, config/i386/i386.c,
config/i386/winnt.c, config/ia64/ia64-c.c, config/ia64/ia64.c,
config/ip2k/ip2k.c, config/m32r/m32r.c, config/m68hc11/m68hc11.c,
config/m68k/m68k.c, config/mcore/mcore.c, config/mips/mips.c,
config/mmix/mmix.c, config/ns32k/ns32k.c, config/pa/pa-hpux11.h,
config/pa/pa.c, config/rs6000/aix43.h, config/rs6000/aix51.h,
config/rs6000/aix52.h, config/rs6000/darwin.h,
config/rs6000/rs6000-c.c, config/rs6000/rs6000.c,
config/s390/s390.c, config/sh/sh.c, config/sh/sh.h,
config/sh/symbian.c, config/sol2-c.c, config/sol2.c,
config/stormy16/stormy16.c, config/v850/v850-c.c,
config/v850/v850.c, config/xtensa/xtensa.c: Adjust warning()
callers.

* ada/misc.c: Adjust warning() callers.

* cp/call.c, cp/class.c, cp/cvt.c, cp/decl.c, cp/decl2.c,
cp/except.c, cp/friend.c, cp/init.c, cp/lex.c, cp/mangle.c,
cp/method.c, cp/name-lookup.c, cp/parser.c, cp/repo.c, cp/rtti.c,
cp/tree.c, cp/typeck.c, cp/typeck2.c: Adjust warning() callers.

* fortran/trans-decl.c: Adjust warning() callers.

* java/class.c, java/decl.c, java/expr.c, java/jcf-io.c,
java/jcf-parse.c, java/jv-scan.c, java/parse.y: Adjust warning()
callers.

* objc/objc-act.c: Adjust warning() callers.

* treelang/parse.y: Adjust warning() callers.

From-SVN: r98633