[compiler-rt] Replace bool operator== for VersionType in sanitizer_mac.h (PR #135068)

[Walter Lee via llvm-commits]

================
@@ -37,16 +37,18 @@ struct VersionBase {
 
   VersionBase(u16 major, u16 minor) : major(major), minor(minor) {}
 
-  bool operator==(const VersionType &other) const {
-    return major == other.major && minor == other.minor;
-  }
   bool operator>=(const VersionType &other) const {
     return major > other.major ||
            (major == other.major && minor >= other.minor);
   }
   bool operator<(const VersionType &other) const { return !(*this >= other); }
 };
 
+template <typename VersionType>
----------------
googlewalt wrote:

It doesn't.  The code (e.g. MacosVersion immediately below) expects VersionBase to be a template.  Defining an matching `operator!=` seems to work.

https://github.com/llvm/llvm-project/pull/135068