* gdb.base/annota1.exp: Move test of isnative to earlier in the

	* gdb.base/annota1.exp: Move test of isnative to earlier in the
 	file -- to prevent failing when the compile fails but we have no
 	intention of running the tests anyway.

	* gdb.base/long_long.exp: Test target_info for no_long_long, skip
	tests if set.

	* gdb.base/maint.exp: Support 2 byte integers as well as 4 byte
 	integers.

	* gdb.c++/ctti.exp: Skip tests if skip_cplus_tests returns true.
	* gdb.c++/namespace.exp: Ditto.

Fix PR gdb/16.