libitm.exp: Reorder lib loads into dependency order.

2013-06-20  Iain Sandoe  <iain@codesourcery.com>
	        Cesar Philippidis  <cesar@codesourcery.com>

		* testsuite/lib/libitm.exp: Reorder lib loads into dependency order.
		Do not load_gcc_lib gcc-dg.exp and add a comment as to why.
		* testsuite/libitm.c/c.exp: load_gcc_lib gcc-dg.exp.
		* testsuite/libitm.c++/c++.exp: load_gcc_lib gcc-dg.exp.

Co-Authored-By: Cesar Philippidis <cesar@codesourcery.com>

From-SVN: r200252