generalize build_case_label to the rest of the compiler
gcc/ada/
	* gcc-interface/trans.c (Case_Statement_to_gnu): Call
	build_case_label.

gcc/
	* except.c (sjlj_emit_dispatch_table): Call build_case_label.
	* gimplify.c (gimplify_switch_expr): Likewise.
	* omp-low.c (expand_omp_sections): Likewise.
	* tree-eh.c (lower_try_finally_switch): Likewise.
	(lower_eh_dispatch): Likewise.
	* tree.h (build_case_label): Declare.
	* tree.c (build_case_label): Define.

gcc/c-family/
	* c-common.c (c_add_case_label): Omit the loc argument to
	build_case_label.
	* c-common.h (build_case_label): Remove.
	* c-semantics.c (build_case_label): Remove.

gcc/cp/
	* decl.c (finish_case_label): Omit the loc argument to
	build_case_label.

gcc/fortran/
	* trans-decl.c (gfc_trans_entry_master_switch): Call build_case_label.
	* trans-io.c (add_case): Likewise.
	* trans-stmt.c (gfc_trans_integer_select): Likewise.
	(gfc_trans_character_select): Likewise.

gcc/go/
	* go-gcc.cc (Gcc_backend::switch_statement): Call build_case_label.

gcc/java/
	* expr.c (expand_java_switch): Call build_case_label.
	(expand_java_add_case): Likewise.

From-SVN: r173467