c-parse.in (stmts_and_decls): Deprecate use of label at end of compound statement.

	* c-parse.in (stmts_and_decls): Deprecate use of label at end of
	compound statement.

testsuite:
	* gcc.dg/wtr-label-1.c, gcc.dg/990214-1.c: Add semicolons after
	labels at end of compound statements.

From-SVN: r37435