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

[Maksim Panchenko via llvm-commits]

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@@ -1350,6 +1350,9 @@ class BinaryContext {
     return Code.size();
   }
 
+  /// Processes .text section to identify function references.
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maksfb wrote:

Instead of saying ".text", use more generic "code".

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