More missing dependencies picked up by Ninja.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139248 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/FrontendTool/CMakeLists.txt b/lib/FrontendTool/CMakeLists.txt
index b8e4329..5270b1b 100644
--- a/lib/FrontendTool/CMakeLists.txt
+++ b/lib/FrontendTool/CMakeLists.txt
@@ -5,3 +5,7 @@
 add_clang_library(clangFrontendTool
   ExecuteCompilerInvocation.cpp
   )
+
+add_dependencies(clangFrontendTool
+  ClangCC1Options
+  ClangDiagnosticFrontend)