[clang-tools-extra] 478092d - [clangd][iwyu] explicitly includes `<atomic>`

[Christopher Di Bella via cfe-commits]

Author: Christopher Di Bella
Date: 2021-07-04T06:00:39Z
New Revision: 478092d33116ec01ad0b82f7eeedb1e1f07aef93

URL: https://github.com/llvm/llvm-project/commit/478092d33116ec01ad0b82f7eeedb1e1f07aef93
DIFF: https://github.com/llvm/llvm-project/commit/478092d33116ec01ad0b82f7eeedb1e1f07aef93.diff

LOG: [clangd][iwyu] explicitly includes `<atomic>`

Compiling clangd with Clang modules and libc++ revealed that
`support/Threading.h` uses `std::atomic` but wasn't including the
correct header.

Differential Revision: https://reviews.llvm.org/D105400

Added: 
    

Modified: 
    clang-tools-extra/clangd/support/Threading.h

Removed: 
    


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diff  --git a/clang-tools-extra/clangd/support/Threading.h b/clang-tools-extra/clangd/support/Threading.h
index da9e3b8ea8b68..7f4ef6c0b1cbe 100644
--- a/clang-tools-extra/clangd/support/Threading.h
+++ b/clang-tools-extra/clangd/support/Threading.h
@@ -12,6 +12,7 @@
 #include "support/Context.h"
 #include "llvm/ADT/FunctionExtras.h"
 #include "llvm/ADT/Twine.h"
+#include <atomic>
 #include <cassert>
 #include <condition_variable>
 #include <future>