re PR middle-end/27382 (ICE in c_common_truthvalue_conversion with label address)

	PR middle-end/27382
	* c-common.c (c_common_truthvalue_conversion): Explicitly check
	for LABEL_DECL before calling DECL_WEAK.

	PR c/27150
	* c-typeck.c (build_binary_op): Likewise, explicitly check for
	LABEL_DECL and PARM_DECL.

	* gcc.dg/pr27150-1.c: New testcase.
	* gcc.dg/pr27382-1.c: New testcase.
	* gcc.dg/pr27382-2.c: New testcase.


Co-Authored-By: Andrew Pinski <pinskia@physics.uc.edu>

From-SVN: r114380