name-lookup.c (pushdecl_maybe_friend_1): Replace pairs of warning_at and permerror with warning_at/inform and permerror/...

/cp
2013-05-15  Paolo Carlini  <paolo.carlini@oracle.com>

	* name-lookup.c (pushdecl_maybe_friend_1): Replace pairs of
	warning_at and permerror with warning_at/inform and permerror/
	inform, respectively.

/testsuite
2013-05-15  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.dg/cpp0x/lambda/lambda-shadow1.C: Replace dg-warnings with
	dg-messages.
	* g++.dg/warn/Wshadow-1.C: Likewise.
	* g++.dg/warn/Wshadow-6.C: Likewise.
	* g++.dg/warn/Wshadow-7.C: Likewise.

From-SVN: r198943