[PATCH] Make it easier to use DwarfContext with MCJIT

[Keno Fischer]

REPOSITORY
  rL LLVM

================
Comment at: include/llvm/DebugInfo/DIContext.h:147
@@ +146,3 @@
+
+  /// \brief Obtain the Load Address of a section by Name
+  ///
----------------
echristo wrote:
> Sentences end with a period. Also we have \brief support turned on so you don't need to use \brief anymore. (And in the other places :)
Will fix.

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Comment at: include/llvm/DebugInfo/DIContext.h:173
@@ +172,3 @@
+  /// The caller is responsible for deallocation once the copy is no longer required.
+  virtual LoadedObjectInfo *clone() const = 0;
+};
----------------
echristo wrote:
> clone is entirely unused.
It's supposed to be available for the client to be able to obtain a copy of the LoadedObjectInfo, since the one it gets from MCJIT is passed by reference. We could probably change that one to a shared_ptr, but I didn't want to put that API breakage into the same commit.

http://reviews.llvm.org/D6961

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