Increase expected line number for ExtDebugInfo.cpp

[Jake-Egan]

Summary

This patch increases the expected line number for one of the checks so that it doesn't have to be updated for any added/removed lines in the RUN section.

This change is in preparation for the following patch: https://reviews.llvm.org/D109060

[jsji]

LGTM. But please wait to see whether @aprantl has any comments. Thanks.

clang/test/Modules/ExtDebugInfo.cpp

27

Add comment about why we want to add this directive here.

[Jake-Egan]

Added a comment.

[aprantl]

Thanks!

clang/test/Modules/ExtDebugInfo.cpp

 // RUN:     -include-pch %t.pch %s -emit-llvm -o %t-pch.ll
 // RUN: cat %t-pch.ll |  FileCheck %s
 // RUN: cat %t-pch.ll |  FileCheck %s --check-prefix=CHECK-PCH
 
 #ifdef MODULES
 @import DebugCXX;
 #endif
 
+// Set the line number so that the LIT check expected line number doesn't have to be updated after adding/removing a line in the RUN section.
+#line 50
 using DebugCXX::Struct;
 
 Struct s;
 DebugCXX::Enum e;
 
 // Template instantiations.
 DebugCXX::Template<long> implicitTemplate;
 DebugCXX::Template<int> explicitTemplate;

 // CHECK-SAME:                elements: !{{[0-9]+}})
 
 
 // CHECK: !DIGlobalVariable(name: "anon",
 // CHECK-SAME:              type: ![[GLOBAL_ANON:[0-9]+]]
 // CHECK: ![[GLOBAL_ANON]] = !DICompositeType(tag: DW_TAG_structure_type,
 // CHECK-SAME:              name: "InAnonymousNamespace", {{.*}}DIFlagFwdDecl)
 
-
-// CHECK: !DIImportedEntity(tag: DW_TAG_imported_declaration, scope: !{{[0-9]+}}, entity: ![[STRUCT]], file: ![[CPP]], line: 27)
+// CHECK: !DIImportedEntity(tag: DW_TAG_imported_declaration, scope: !{{[0-9]+}}, entity: ![[STRUCT]], file: ![[CPP]], line: 50)
 
 // CHECK: !DICompileUnit(
 // CHECK-SAME:           splitDebugFilename:
 // CHECK-SAME:           dwoId:
 // CHECK-PCH: !DICompileUnit({{.*}}splitDebugFilename:
 // CHECK-PCH:                dwoId: 18446744073709551614
 
 // CHECK: !DICompositeType(tag: DW_TAG_class_type, name: "A",
 // CHECK-SAME:             DIFlagFwdDecl
 
 // There is a full definition of the type available in the module.
 // CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "Virtual",
 // CHECK-SAME:             DIFlagFwdDecl
 // CHECK-SAME:             identifier: "_ZTS7Virtual")