re PR other/42966 (add some indication that a warning has been converted to an error)

re PR other/42966 (add some indication that a warning has been converted to an error)

2010-04-14  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	PR 42966
	* diagnostics.c (diagnostic_report_diagnostic): Mark specially
	warnings converted to errors.

testsuite/
	* gcc.dg/cpp/warn-undef-2.c: Update.
	* gcc.dg/cpp/warn-traditional-2.c: Update.
	* gcc.dg/cpp/warn-comments-2.c: Update.
	* gcc.dg/cpp/warn-variadic-2.c: Update.
	* gcc.dg/cpp/warn-long-long-2.c: Update.
	* gcc.dg/cpp/warn-deprecated-2.c: Update.
	* gcc.dg/cpp/warn-multichar-2.c: Update.
	* gcc.dg/cpp/warn-normalized-3.c: Update.
	* gcc.dg/cpp/warn-cxx-compat-2.c: Update.
	* gcc.dg/cpp/warn-trigraphs-3.c: Update.
	* gcc.dg/cpp/warn-unused-macros-2.c: Update.
	* gcc.dg/cpp/warn-trigraphs-4.c: Update.
	* gcc.dg/cpp/warn-redefined-2.c: Update.
	* gfortran.dg/warning-directive-2.F90: Update.
	* c-c++-common/cpp/warning-directive-2.c: Update.

From-SVN: r158349