Comments fix.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51151 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/IdentifierResolver.cpp b/lib/Sema/IdentifierResolver.cpp
index fada62f..33b2102 100644
--- a/lib/Sema/IdentifierResolver.cpp
+++ b/lib/Sema/IdentifierResolver.cpp
@@ -67,7 +67,7 @@
 }
 
 /// AddShadowedDecl - Link the decl to its shadowed decl chain putting it
-/// after the decl that the iterator points to, thus the 'CIT' decl will be
+/// after the decl that the iterator points to, thus the 'Shadow' decl will be
 /// encountered before the 'D' decl.
 void IdentifierResolver::AddShadowedDecl(NamedDecl *D, NamedDecl *Shadow) {
   assert(D->getIdentifier() == Shadow->getIdentifier() && "Different ids!");