Documentation: add an idea for a (weird) clang tool


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176005 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/ClangTools.rst b/docs/ClangTools.rst
index d6a0828..5c31e1d 100644
--- a/docs/ClangTools.rst
+++ b/docs/ClangTools.rst
@@ -120,4 +120,8 @@
   ``foo.begin()`` into ``begin(foo)`` and similarly for ``end()``, where
   ``foo`` is a standard container.  We could also detect similar patterns for
   arrays.
+* A tool to remove ``auto``.  Will convert ``auto`` to an explicit type or add
+  comments with deduced types.  The motivation is that there are developers
+  that don't want to use ``auto`` because they are afraid that they might lose
+  control over their code.