* c_variable.test (1.4,2.14): Remove test for local frame

	* c_variable.test (1.4,2.14): Remove test for local frame
	variables. Varobj now forces evaluation in the current frame
	by default.
	(2.15): Ignore any changes and only check for out of scope
	locals (which is still unsupported).
	* cpp_variable.test (1.1): Support alternative names for
	local scope.
	(1.6a): Catch call to gdb_cmd to prevent an error from
	throwing testsuite into la-la land. Add to test.
	(1.7): Ignore results from children during step, since
	they may or may not change value when the parent changes.
	(2.2a): New test incorperating gdb_cmd (also wrapped in
	catch).
	(2.22a): Likewise.
	(2.71a): Likewise.