[libc++] Bump Clang support for Clang 4
It's hard to imagine someone using a recent version of libc++ with a
roughly 3 years old Clang. Since we're not testing libc++ with Clang 3.5
anyway, claiming support for it is somewhat of a lie.
Note that we don't test Clang 4 either, however I have no reason to bump
the requirement beyond Clang 4 at the moment, whereas removing Clang 3.5
allows simplifying the test suite.
Differential Revision: https://reviews.llvm.org/D76618
Cr-Mirrored-From: https://chromium.googlesource.com/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 3c84aca9b357f8c49eacf69a72c9281fb96dd72f
diff --git a/docs/index.rst b/docs/index.rst
index 7abdb10..f763f3a 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -100,7 +100,7 @@
The following minimum compiler versions are strongly recommended.
-* Clang 3.5 and above
+* Clang 4.0 and above
* GCC 5.0 and above.
The C++03 dialect is only supported for Clang compilers.