[clang] [clang][MBD] set up module build daemon infrastructure (PR #67562)

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<!--LLVM CODE FORMAT COMMENT: {clang-format}-->

:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

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``````````bash
git-clang-format --diff b4a899999a5edf08af9e03324274ebdce7e032ce 18d413991f49162923172fbb8ee5016eef954636 -- clang/include/clang/Tooling/ModuleBuildDaemon/Client.h clang/include/clang/Tooling/ModuleBuildDaemon/SocketMsgSupport.h clang/include/clang/Tooling/ModuleBuildDaemon/SocketSupport.h clang/include/clang/Tooling/ModuleBuildDaemon/Utils.h clang/lib/Tooling/ModuleBuildDaemon/Client.cpp clang/lib/Tooling/ModuleBuildDaemon/SocketSupport.cpp clang/lib/Tooling/ModuleBuildDaemon/Utils.cpp clang/test/ModuleBuildDaemon/handshake.c clang/test/ModuleBuildDaemon/launch.c clang/tools/driver/cc1modbuildd_main.cpp clang/include/clang/Frontend/FrontendOptions.h clang/lib/Driver/ToolChains/Clang.cpp clang/test/Driver/unknown-arg.c clang/tools/driver/cc1_main.cpp clang/tools/driver/driver.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/Tooling/ModuleBuildDaemon/Client.cpp b/clang/lib/Tooling/ModuleBuildDaemon/Client.cpp
index 576a3c0ce9c0..766b78ee940d 100644
--- a/clang/lib/Tooling/ModuleBuildDaemon/Client.cpp
+++ b/clang/lib/Tooling/ModuleBuildDaemon/Client.cpp
@@ -126,7 +126,7 @@ Expected<int> cc1modbuildd::getModuleBuildDaemon(const char *Argv0,
         return std::move(*MaybeFD);
       consumeError(MaybeFD.takeError());
     }
-    
+
     CumulativeTime += WaitTime;
     // Exponential backoff
     WaitTime = WaitTime * 2;

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https://github.com/llvm/llvm-project/pull/67562