Improve comments.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59294 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/GRExprEngine.cpp b/lib/Analysis/GRExprEngine.cpp
index 38eeadd..cb7c7fe 100644
--- a/lib/Analysis/GRExprEngine.cpp
+++ b/lib/Analysis/GRExprEngine.cpp
@@ -1672,7 +1672,7 @@
         continue;
       }
 
-    // StoreManager casts array to different values.
+    // Check for casts from array type to pointer type.
     if (ExTy->isArrayType()) {
       assert(T->isPointerType() || T->isReferenceType());