Teach test suite about C++2a dialect flag.
This patch teaches the test suite configuration about the -std=c++2a
flag. And, since it's the newest dialect, change the test suite to
choose it, if possible, by default.
llvm-svn: 317611
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 537309342d7d9bb7e8dbd2f89a2e1489cacbf251
diff --git a/docs/TestingLibcxx.rst b/docs/TestingLibcxx.rst
index 8f0d985..43c0684 100644
--- a/docs/TestingLibcxx.rst
+++ b/docs/TestingLibcxx.rst
@@ -112,7 +112,7 @@
.. option:: std=<standard version>
- **Values**: c++98, c++03, c++11, c++14, c++17
+ **Values**: c++98, c++03, c++11, c++14, c++17, c++2a
Change the standard version used when building the tests.