(dbxout_symbol): Last arg to eliminate_regs is NULL_RTX.

From-SVN: r4137

gcc/dbxout.c

@@ -1659,7 +1659,7 @@ dbxout_symbol (decl, local)
 	  /* else it is something we handle like a normal variable.  */
 	}
 
-      DECL_RTL (decl) = eliminate_regs (DECL_RTL (decl), 0, 0);
+      DECL_RTL (decl) = eliminate_regs (DECL_RTL (decl), 0, NULL_RTX);
 #ifdef LEAF_REG_REMAP
       if (leaf_function)
 	leaf_renumber_regs_insn (DECL_RTL (decl));