[clang] [WebAssembly] Make WASI -threads environment behave as -pthread (PR #129164)

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

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git-clang-format --diff 9a54c77aa361d0d1f98a39a89e3f543d15d182a5 b5988ff4fa2e5115e325020655fd570fd68eedd2 --extensions cpp,c -- clang/lib/Driver/ToolChains/WebAssembly.cpp clang/test/Driver/wasm-toolchain.c
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View the diff from clang-format here.
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diff --git a/clang/lib/Driver/ToolChains/WebAssembly.cpp b/clang/lib/Driver/ToolChains/WebAssembly.cpp
index 78cf8a1f6b..cd12f2ae5a 100644
--- a/clang/lib/Driver/ToolChains/WebAssembly.cpp
+++ b/clang/lib/Driver/ToolChains/WebAssembly.cpp
@@ -70,9 +70,8 @@ static bool TargetBuildsComponents(const llvm::Triple &TargetTriple) {
 }
 
 static bool WantsPthread(const llvm::Triple &Triple, const ArgList &Args) {
-  bool WantsPthread = Args.hasFlag(options::OPT_pthread,
-                                   options::OPT_no_pthread,
-                                   false);
+  bool WantsPthread =
+      Args.hasFlag(options::OPT_pthread, options::OPT_no_pthread, false);
 
   // If the WASI environment is "threads" then enable pthreads support
   // without requiring -pthread, in order to prevent user error

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https://github.com/llvm/llvm-project/pull/129164