[PATCH] DebugInfo: Permit DW_TAG_structure_type, DW_TAG_member, DW_TAG_typedef tags with empty file names.

[David Blaikie]

================
Comment at: test/DebugInfo/X86/missing-file-line.ll:3
@@ +2,3 @@
+
+; RUN: llc -mtriple=x86_64-linux-gnu -filetype=obj %s -o - | llvm-dwarfdump -debug-dump=all - > %t
+; RUN: FileCheck --check-prefix=CHECK1 %s < %t
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Ideally just pipe dwarfdump's output straight to FileCheck without the intermediate %t - then just use a single set of CHECK (rather than 3 separate CHECK prefixes) lines for the tests.

http://reviews.llvm.org/D8588

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