[llvm] [NewPM][CodeGen] Port `regallocfast` to new pass manager (PR #94426)

[Arthur Eubanks via llvm-commits]

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@@ -78,9 +78,9 @@ struct MachinePassModel
     auto PA = this->Pass.run(IR, AM);
 
     if constexpr (is_detected<has_get_set_properties_t, PassT>::value)
-      IR.getProperties().set(PassT::getSetProperties());
+      IR.getProperties().set(this->Pass.getSetProperties());
     if constexpr (is_detected<has_get_cleared_properties_t, PassT>::value)
-      IR.getProperties().reset(PassT::getClearedProperties());
+      IR.getProperties().reset(this->Pass.getClearedProperties());
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aeubanks wrote:

I was talking with Chandler a while back about the nicest way to do this, and he agreed that my proposal of a helper function that takes in a MachineFunction/MachineFunctionProperties to verify, and manually calling that at the beginning of `run()` was his preferred way. But anyway, not relevant to this PR

https://github.com/llvm/llvm-project/pull/94426