fix typos

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47995 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Analysis/ValueState.cpp b/Analysis/ValueState.cpp
index f47e14b..ef6fc17 100644
--- a/Analysis/ValueState.cpp
+++ b/Analysis/ValueState.cpp
@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-//  This files defines SymbolID, ExprBindKey, and ValueState*
+//  This file defines SymbolID, ExprBindKey, and ValueState*
 //
 //===----------------------------------------------------------------------===//