ClangTools doc: add ideas for new tools in clang-tools-extra to ensure that
these ideas don't get lost


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171667 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/ClangTools.rst b/docs/ClangTools.rst
index 10f14d8..2de0943 100644
--- a/docs/ClangTools.rst
+++ b/docs/ClangTools.rst
@@ -89,3 +89,14 @@
 they'll be tracked here. The focus of this documentation is on the scope
 and features of the tools for other tool developers; each tool should
 provide its own user-focused documentation.
+
+Ideas for new Tools
+-------------------
+
+* C++11 null pointer conversion tool.  Will convert all null pointer constants
+  (like ``NULL`` or ``0``) to C++11 ``nullptr``.
+
+* C++ cast conversion tool.  Will convert C-style casts (``(type) value``) to
+  appropriate C++ cast (``static_cast``, ``const_cast`` or
+  ``reinterpret_cast``).
+