[clang] [FatLTO] Allow -fno-fat-lto-objects to override -ffat-lto-objects (PR #128157)

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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 af64f0a6c2e26b3fd1979c1fa380136e5528c9b3 4d44ed82dc822e486aee3620707b463214fb18cb --extensions cpp,c -- clang/lib/Driver/ToolChains/CommonArgs.cpp clang/test/Driver/fat-lto-objects.c
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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp b/clang/lib/Driver/ToolChains/CommonArgs.cpp
index 50db1e2f7d..7c931649de 100644
--- a/clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ b/clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -860,7 +860,8 @@ void tools::addLTOOptions(const ToolChain &ToolChain, const ArgList &Args,
   const bool IsAMDGCN = Triple.isAMDGCN();
   const char *Linker = Args.MakeArgString(ToolChain.GetLinkerPath());
   const Driver &D = ToolChain.getDriver();
-  const bool IsFatLTO = Args.hasFlag(options::OPT_ffat_lto_objects, options::OPT_fno_fat_lto_objects, false);
+  const bool IsFatLTO = Args.hasFlag(options::OPT_ffat_lto_objects,
+                                     options::OPT_fno_fat_lto_objects, false);
   const bool IsUnifiedLTO = Args.hasArg(options::OPT_funified_lto);
   if (llvm::sys::path::filename(Linker) != "ld.lld" &&
       llvm::sys::path::stem(Linker) != "ld.lld" && !Triple.isOSOpenBSD()) {

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https://github.com/llvm/llvm-project/pull/128157