lto.exp: Add support for C/C++ mix language testing.

	* g++.dg/lto/lto.exp: Add support for C/C++ mix language testing.

	* gcc.dg/lto/pr54625-1_0.c: Move from here...
	* g++.dg/lto/pr54625-1_0.c: ... to here.
	* gcc.dg/lto/pr54625-1_1.C: Likewise.
	* g++.dg/lto/pr54625-1_1.C: Likewise.
	* gcc.dg/lto/pr54625-2_0.c: Likewise.
	* g++.dg/lto/pr54625-2_0.c: Likewise.
	* gcc.dg/lto/pr54625-2_1.C: Likewise.
	* g++.dg/lto/pr54625-2_1.C: Likewise.

From-SVN: r203862

gcc/testsuite/ChangeLog

+2013-10-19  Mike Stump  <mikestump@comcast.net>
+
+	* g++.dg/lto/lto.exp: Add support for C/C++ mix language testing.
+
+	* gcc.dg/lto/pr54625-1_0.c: Move from here...
+	* g++.dg/lto/pr54625-1_0.c: ... to here.
+	* gcc.dg/lto/pr54625-1_1.C: Likewise.
+	* g++.dg/lto/pr54625-1_1.C: Likewise.
+	* gcc.dg/lto/pr54625-2_0.c: Likewise.
+	* g++.dg/lto/pr54625-2_0.c: Likewise.
+	* gcc.dg/lto/pr54625-2_1.C: Likewise.
+	* g++.dg/lto/pr54625-2_1.C: Likewise.
+
 2013-10-19  Oleg Endo  <olegendo@gcc.gnu.org>
 
 	* gcc.target/sh/pr54089-3.c: Fix test for load of constant 31.

gcc/testsuite/g++.dg/lto/lto.exp

@@ -48,7 +48,7 @@ if { ![check_effective_target_lto] } {
 }
 
 # Main loop.
-foreach src [lsort [find $srcdir/$subdir *_0.C]] {
+foreach src [lsort [find $srcdir/$subdir *_0.\[cC\]]] {
     # If we're only testing specific files and this isn't one of them, skip it.
     if ![runtest_file_p $runtests $src] then {
 	continue