[lto] Add test case for ICE after error messages

[Diego Novillo]

This used to produce a segfault after the error message for using
free on a non-heap object.  Not anymore.  Adding test to prevent
future breakage.


Diego.




	* gcc.dg/lto/20081109_0.c: New.

Index: gcc.dg/lto/20081109_0.c
===================================================================
--- gcc.dg/lto/20081109_0.c	(revision 0)
+++ gcc.dg/lto/20081109_0.c	(revision 0)
@@ -0,0 +1,3 @@
+/* { dg-do compile } */
+/* { dg-options "{-w -flto-single}" }  */
+void Foo(void) { char bar[1]; free(bar); }