[PATCH] [prototype] Adding line table debug information to LLVM on Windows

[Timur Iskhodzhanov]

  Added a prototype CodeView line table dumper to COFFDumper.cpp

  Can you please suggest
  - an effective splitting of the whole patch to make it easier to review
  - a good way to structure the new code, e.g. is it fine to leave the CV dumper in COFFDumper or should I have a gorilla holding a banana like dwarf-dump works? (e.g. DI structures etc)
  - is the simple.ll OBJ32 kind of test enough? or maybe you've meant some other kind of testing using a dumper?
  - what tests do we need for the dumper itself?

Hi echristo, rnk,

http://llvm-reviews.chandlerc.com/D2232

CHANGE SINCE LAST DIFF
  http://llvm-reviews.chandlerc.com/D2232?vs=5930&id=6037#toc

Files:
  include/llvm/MC/MCAssembler.h
  include/llvm/MC/MCObjectFileInfo.h
  include/llvm/MC/MCStreamer.h
  lib/CodeGen/AsmPrinter/AsmPrinter.cpp
  lib/CodeGen/AsmPrinter/CMakeLists.txt
  lib/CodeGen/AsmPrinter/WinCodeViewLineTables.cpp
  lib/CodeGen/AsmPrinter/WinCodeViewLineTables.h
  lib/MC/MCAsmStreamer.cpp
  lib/MC/MCAssembler.cpp
  lib/MC/MCObjectFileInfo.cpp
  lib/MC/MCStreamer.cpp
  lib/MC/WinCOFFStreamer.cpp
  lib/Target/X86/MCTargetDesc/X86WinCOFFObjectWriter.cpp
  test/DebugInfo/X86/CodeView/asm.ll
  test/DebugInfo/X86/CodeView/multifile.ll
  test/DebugInfo/X86/CodeView/multifunction.ll
  test/DebugInfo/X86/CodeView/simple.ll
  tools/llvm-readobj/COFFDumper.cpp
  tools/llvm-readobj/llvm-readobj.cpp
  tools/llvm-readobj/llvm-readobj.h
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