* lib/old-dejagnu.exp (old-dejagnu): Copy extra source files
	to the host if it is remote.  Let tests specify extra headers
	they use.
	* g++.old-deja/g++.abi/vtable3a.C: This uses 'vtable3.h'.
	* g++.old-deja/g++.abi/vtable3b.C: This uses 'vtable3.h'.
	* g++.old-deja/g++.abi/vtable3c.C: This uses 'vtable3.h'.
	* g++.old-deja/g++.abi/vtable3d.C: This uses 'vtable3.h'.
	* g++.old-deja/g++.abi/vtable3e.C: This uses 'vtable3.h'.
	* g++.old-deja/g++.abi/vtable3f.C: This uses 'vtable3.h'.
	* g++.old-deja/g++.abi/vtable3g.C: This uses 'vtable3.h'.
	* g++.old-deja/g++.abi/vtable3h.C: This uses 'vtable3.h'.
	* g++.old-deja/g++.abi/vtable3i.C: This uses 'vtable3.h'.
	* g++.old-deja/g++.abi/vtable3j.C: This uses 'vtable3.h'.

From-SVN: r47281