gcc/testsuite:

	* gcc/testsuite/objc.dg/strings-1.m: Move to...
	* gcc/testsuite/objc.dg/strings/strings-1.m: ... here. Update paths.
	* gcc/testsuite/objc.dg/strings-2.m: Move to ...
	* gcc/testsuite/objc.dg/strings/strings-2.m ... here, provide a 
	constructor and class reference for NeXT runtime.  Update paths.
	* gcc/testsuite/obj-c++.dg/strings-1.m: Move to...
	* gcc/testsuite/obj-c++.dg/strings/strings-1.m: ... here. Update paths.
	* gcc/testsuite/obj-c++.dg/strings-2.m: Move to ...
	* gcc/testsuite/obj-c__.dg/strings/strings-2.m ... here, provide a 
	constructor and class reference for NeXT runtime.  Update paths.

From-SVN: r167253