Debug Info Testing: updated to use NULL instead of "i32 0" in a few fields.

Field 2 of DIType (Context), field 9 of DIDerivedType (TypeDerivedFrom),
field 12 of DICompositeType (ContainingType), fields 2, 7, 12 of DISubprogram
(Context, Type, ContainingType).

llvm-svn: 190205
diff --git a/llvm/test/CodeGen/X86/stack-protector-dbginfo.ll b/llvm/test/CodeGen/X86/stack-protector-dbginfo.ll
index 2690fd8..4e3f350 100644
--- a/llvm/test/CodeGen/X86/stack-protector-dbginfo.ll
+++ b/llvm/test/CodeGen/X86/stack-protector-dbginfo.ll
@@ -28,7 +28,7 @@
 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 ", i1 true, metadata !"", i32 0, metadata !2, metadata !5, metadata !8, metadata !20, metadata !5, metadata !""} ; [ DW_TAG_compile_unit ] [/Users/matt/ryan_bug/<unknown>] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"<unknown>", metadata !"/Users/matt/ryan_bug"}
 !2 = metadata !{metadata !3}
-!3 = metadata !{i32 786436, metadata !1, metadata !4, metadata !"", i32 20, i64 32, i64 32, i32 0, i32 0, null, metadata !6, i32 0, i32 0, null, null} ; [ DW_TAG_enumeration_type ] [line 20, size 32, align 32, offset 0] [def] [from ]
+!3 = metadata !{i32 786436, metadata !1, metadata !4, metadata !"", i32 20, i64 32, i64 32, i32 0, i32 0, null, metadata !6, i32 0, null, null, null} ; [ DW_TAG_enumeration_type ] [line 20, size 32, align 32, offset 0] [def] [from ]
 !4 = metadata !{i32 786451, metadata !1, null, metadata !"C", i32 19, i64 8, i64 8, i32 0, i32 0, null, metadata !5, i32 0, null, null, null} ; [ DW_TAG_structure_type ] [C] [line 19, size 8, align 8, offset 0] [def] [from ]
 !5 = metadata !{i32 0}
 !6 = metadata !{metadata !7}
@@ -36,7 +36,7 @@
 !8 = metadata !{metadata !9}
 !9 = metadata !{i32 786478, metadata !1, metadata !10, metadata !"read_response_size", metadata !"read_response_size", metadata !"_Z18read_response_sizev", i32 27, metadata !11, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 ()* @_Z18read_response_sizev, null, null, metadata !14, i32 27} ; [ DW_TAG_subprogram ] [line 27] [def] [read_response_size]
 !10 = metadata !{i32 786473, metadata !1}         ; [ DW_TAG_file_type ] [/Users/matt/ryan_bug/<unknown>]
-!11 = metadata !{i32 786453, i32 0, i32 0, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !12, i32 0, i32 0, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!11 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !12, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !12 = metadata !{metadata !13}
 !13 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
 !14 = metadata !{metadata !15, metadata !19}
@@ -52,7 +52,7 @@
 !24 = metadata !{i32 786478, metadata !1, metadata !25, metadata !"min<unsigned long long>", metadata !"min<unsigned long long>", metadata !"_ZN3__13minIyEERKT_S3_RS1_", i32 12, metadata !27, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, null, metadata !33, null, metadata !35, i32 12} ; [ DW_TAG_subprogram ] [line 12] [def] [min<unsigned long long>]
 !25 = metadata !{i32 786489, metadata !26, null, metadata !"__1", i32 1} ; [ DW_TAG_namespace ] [__1] [line 1]
 !26 = metadata !{metadata !"main.cpp", metadata !"/Users/matt/ryan_bug"}
-!27 = metadata !{i32 786453, i32 0, i32 0, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !28, i32 0, i32 0, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!27 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !28, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !28 = metadata !{metadata !29, metadata !29, metadata !32}
 !29 = metadata !{i32 786448, null, null, null, i32 0, i64 0, i64 0, i64 0, i32 0, metadata !30} ; [ DW_TAG_reference_type ] [line 0, size 0, align 0, offset 0] [from ]
 !30 = metadata !{i32 786470, null, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, metadata !31} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from long long unsigned int]
@@ -67,14 +67,14 @@
 !39 = metadata !{i32 12, i32 0, metadata !24, metadata !38}
 !40 = metadata !{i32 9, i32 0, metadata !41, metadata !59}
 !41 = metadata !{i32 786478, metadata !1, metadata !25, metadata !"min<unsigned long long, __1::A>", metadata !"min<unsigned long long, __1::A>", metadata !"_ZN3__13minIyNS_1AEEERKT_S4_RS2_T0_", i32 7, metadata !42, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, null, metadata !53, null, metadata !55, i32 8} ; [ DW_TAG_subprogram ] [line 7] [def] [scope 8] [min<unsigned long long, __1::A>]
-!42 = metadata !{i32 786453, i32 0, i32 0, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !43, i32 0, i32 0, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!42 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !43, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !43 = metadata !{metadata !29, metadata !29, metadata !32, metadata !44}
 !44 = metadata !{i32 786451, metadata !1, metadata !25, metadata !"A", i32 0, i64 8, i64 8, i32 0, i32 0, null, metadata !45, i32 0, null, null, null} ; [ DW_TAG_structure_type ] [A] [line 0, size 8, align 8, offset 0] [def] [from ]
 !45 = metadata !{metadata !46}
 !46 = metadata !{i32 786478, metadata !1, metadata !44, metadata !"operator()", metadata !"operator()", metadata !"_ZN3__11AclERKiS2_", i32 1, metadata !47, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 true, null, null, i32 0, metadata !52, i32 1} ; [ DW_TAG_subprogram ] [line 1] [operator()]
-!47 = metadata !{i32 786453, i32 0, i32 0, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !48, i32 0, i32 0, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!47 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !48, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !48 = metadata !{metadata !13, metadata !49, metadata !50, metadata !50}
-!49 = metadata !{i32 786447, i32 0, i32 0, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 1088, metadata !44} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from A]
+!49 = metadata !{i32 786447, i32 0, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 1088, metadata !44} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from A]
 !50 = metadata !{i32 786448, null, null, null, i32 0, i64 0, i64 0, i64 0, i32 0, metadata !51} ; [ DW_TAG_reference_type ] [line 0, size 0, align 0, offset 0] [from ]
 !51 = metadata !{i32 786470, null, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, metadata !13} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from int]
 !52 = metadata !{i32 786468}