[clang] [clang][Driver][Darwin] Turn on -gsimple-template-names for Darwin by default (PR #182297)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions h,c,cpp -- clang/include/clang/Driver/ToolChain.h clang/lib/Driver/ToolChains/Clang.cpp clang/lib/Driver/ToolChains/Darwin.cpp clang/lib/Driver/ToolChains/Darwin.h clang/test/DebugInfo/CXX/fn-template.cpp clang/test/Driver/debug-options.c --diff_from_common_commit
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/Driver/ToolChains/Darwin.cpp b/clang/lib/Driver/ToolChains/Darwin.cpp
index 70df4d724..8c801c2af 100644
--- a/clang/lib/Driver/ToolChains/Darwin.cpp
+++ b/clang/lib/Driver/ToolChains/Darwin.cpp
@@ -1369,8 +1369,8 @@ unsigned DarwinClang::GetDefaultDwarfVersion() const {
 }
 
 bool DarwinClang::getDefaultDebugSimpleTemplateNames() const override {
-  // Default to an OS version on which LLDB supports debugging -gsimple-template-names
-  // programs.
+  // Default to an OS version on which LLDB supports debugging
+  // -gsimple-template-names programs.
   if ((isTargetMacOSBased() && isMacosxVersionLT(26)) ||
       (isTargetIOSBased() && isIPhoneOSVersionLT(26)) ||
       (isTargetWatchOSBased() && TargetVersion < llvm::VersionTuple(26)) ||

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https://github.com/llvm/llvm-project/pull/182297