[PATCH] D13078: [docs] Update DominatorTree docs to clarify expectations around unreachable blocks

[Joseph Tremoulet via llvm-commits]

JosephTremoulet added a comment.

lgtm aside from a typo


================
Comment at: include/llvm/Support/GenericDomTree.h:375
@@ +374,3 @@
+  /// block.  This is the same as using operator[] on this class.  The result
+  /// may (but is not required to) be null for an forward (backwards)
+  /// statically unreachable block.
----------------
typo: s/an/a/


http://reviews.llvm.org/D13078