* lib/profopt.exp: Make prof_option_list local to profopt-execute.
	* g++.dg/tree-prof/tree-prof.exp (PROFOPT_OPTIONS): Define after
	including profopt.opt; save and restore existing value.
	* g++.dg/bprob/bprob.exp: Likewise.
	* gcc.dg/matrix/matrix.exp: Likewise.
	* gcc.dg/tree-prof/tree-prof.exp: Likewise.
	* gcc.misc-tests/bprob.exp: Likewise; also replace formerly-ignored
	PROFOPT_OPTIONS.

From-SVN: r188964