[llvm] [CodeGen] Preserved additional analyses in StackSlotColoring pass. (PR #93779)

[Matt Arsenault via llvm-commits]

================
@@ -152,6 +154,14 @@ namespace {
       AU.addRequired<MachineBlockFrequencyInfo>();
       AU.addPreserved<MachineBlockFrequencyInfo>();
       AU.addPreservedID(MachineDominatorsID);
+
+      // As in some Target's pipeline, register allocation (RA) might be
+      // splitted into multiple phases based on register class. So, this pass
----------------
arsenm wrote:

```suggestion
      // In some Target's pipeline, register allocation (RA) might be
      // split into multiple phases based on register class. So, this pass
```

Grammar 

https://github.com/llvm/llvm-project/pull/93779