decl.c (grok_op_properties): Consistently use the location of the decl...

decl.c (grok_op_properties): Consistently use the location of the decl...

/cp
2018-06-11  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (grok_op_properties): Consistently use the location
	of the decl; remove special casing of POSTINCREMENT_EXPR and
	POSTDECREMENT_EXPR wrt default arguments.

/testsuite
2018-06-11  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.dg/lookup/new2.C: Test locations too.
	* g++.dg/other/ellipsis1.C: Likewise.
	* g++.dg/other/operator1.C: Likewise.
	* g++.dg/other/operator2.C: Likewise.
	* g++.dg/overload/operator2.C: Likewise.
	* g++.dg/parse/defarg11.C: Likewise.
	* g++.dg/parse/operator4.C: Likewise.
	* g++.dg/template/error30.C: Likewise.
	* g++.dg/template/explicit-args3.C: Likewise.
	* g++.dg/warn/effc1.C: Likewise.
	* g++.old-deja/g++.brendan/prepost2.C: Likewise.
	* g++.old-deja/g++.brendan/prepost3.C: Likewise.
	* g++.old-deja/g++.bugs/900215_01.C: Likewise.
	* g++.old-deja/g++.jason/conversion5.C: Likewise.
	* g++.old-deja/g++.jason/operator.C: Likewise.

From-SVN: r261455