decl.c, [...]: Don't use the PTR macro.

cp:
	* cp/decl.c, cp/pt.c, cp/search.c, cp/tree.c: Don't use the PTR
	macro.

gcc:
	* bitmap.c, builtins.c, c-incpath.c, cgraph.c, config/frv/frv.c,
	config/mips/mips.c, cppfiles.c, cpphash.c, cppinit.c, cpplib.c,
	dwarf2out.c, dwarfout.c, except.c, expr.c, expr.h, fold-const.c,
	function.c, gcc.c, genoutput.c, gensupport.c, global.c,
	haifa-sched.c, hashtable.c, ifcvt.c, integrate.c, local-alloc.c,
	loop.c, mips-tdump.c, mips-tfile.c, mkdeps.c, protoize.c,
	read-rtl.c, recog.h, reload1.c, sbitmap.c, ssa-dce.c,
	stringpool.c, tlink.c, tree.c, varasm.c, varray.c: Don't use
	the PTR macro.

From-SVN: r68043