Remove the unused 4th operand for DIFile debug info metadata

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176983 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/DebugInfo/X86/ending-run.ll b/test/DebugInfo/X86/ending-run.ll
index 83f04ea..f9cc2c0 100644
--- a/test/DebugInfo/X86/ending-run.ll
+++ b/test/DebugInfo/X86/ending-run.ll
@@ -32,7 +32,7 @@
 !1 = metadata !{i32 0}
 !3 = metadata !{metadata !5}
 !5 = metadata !{i32 786478, i32 0, metadata !6, metadata !"callee", metadata !"callee", metadata !"", metadata !6, i32 4, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 false, i32 (i32)* @callee, null, null, metadata !10, i32 7} ; [ DW_TAG_subprogram ]
-!6 = metadata !{i32 786473, metadata !"ending-run.c", metadata !"/Users/echristo/tmp", null} ; [ DW_TAG_file_type ]
+!6 = metadata !{i32 786473, metadata !"ending-run.c", metadata !"/Users/echristo/tmp"} ; [ DW_TAG_file_type ]
 !7 = metadata !{i32 786453, i32 0, metadata !"", i32 0, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, i32 0} ; [ DW_TAG_subroutine_type ]
 !8 = metadata !{metadata !9, metadata !9}
 !9 = metadata !{i32 786468, null, metadata !"int", null, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]