[llvm] [BOLT] Add support for safe-icf (PR #116275)

[Davide Italiano via llvm-commits]

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@@ -660,6 +672,9 @@ class BinaryContext {
 
   std::unique_ptr<MCAsmBackend> MAB;
 
+  /// ICF level to use for this binary.
+  ICFLevel ICFLevelVar{ICFLevel::None};
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dcci wrote:

It's awkward to call a variable with the suffix Var. Can't you just call it CurrICFLevel or something? 

https://github.com/llvm/llvm-project/pull/116275