clang/lib/Basic/CMakeLists.txt: Add missing dependency, ClangDiagnosticComment.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160096 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Basic/CMakeLists.txt b/lib/Basic/CMakeLists.txt
index 611ae14..938944d 100644
--- a/lib/Basic/CMakeLists.txt
+++ b/lib/Basic/CMakeLists.txt
@@ -38,6 +38,7 @@
   ClangAttrList
   ClangDiagnosticAnalysis
   ClangDiagnosticAST
+  ClangDiagnosticComment
   ClangDiagnosticCommon
   ClangDiagnosticDriver
   ClangDiagnosticFrontend