[PATCH] Fix bug 19437 - Only add discriminators for DWARF 4 and above.

[Chandler Carruth]

  Ok, nits from the peanut gallery, but feel free to ignore me and listen to the real reviewers. ;]

  /me runs away


================
Comment at: include/llvm/IR/Module.h:606
@@ +605,3 @@
+
+  /// Return Dwarf Version by checking module flags.
+  unsigned getDwarfVersion() const;
----------------
Go ahead and put a '\brief' on this.

================
Comment at: include/llvm/IR/Module.h:607
@@ +606,3 @@
+  /// Return Dwarf Version by checking module flags.
+  unsigned getDwarfVersion() const;
+
----------------
Any reason not to return the strongly typed enum?


http://reviews.llvm.org/D3413