[llvm] Fix some typos in machine verifier comments and trace output (PR #160049)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/CodeGen/MachineVerifier.cpp
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``````````diff
diff --git a/llvm/lib/CodeGen/MachineVerifier.cpp b/llvm/lib/CodeGen/MachineVerifier.cpp
index 70f0c711d..115485509 100644
--- a/llvm/lib/CodeGen/MachineVerifier.cpp
+++ b/llvm/lib/CodeGen/MachineVerifier.cpp
@@ -2398,11 +2398,11 @@ void MachineVerifier::visitMachineInstrBefore(const MachineInstr *MI) {
 
     // The next two checks allow COPY between physical and virtual registers,
     // when the virtual register has a scalable size and the physical register
-    // has a fixed size. These checks allow COPY between *potentially* mismatched
-    // sizes. However, once RegisterBankSelection occurs, MachineVerifier should
-    // be able to resolve a fixed size for the scalable vector, and at that
-    // point this function will know for sure whether the sizes are mismatched
-    // and correctly report a size mismatch.
+    // has a fixed size. These checks allow COPY between *potentially*
+    // mismatched sizes. However, once RegisterBankSelection occurs,
+    // MachineVerifier should be able to resolve a fixed size for the scalable
+    // vector, and at that point this function will know for sure whether the
+    // sizes are mismatched and correctly report a size mismatch.
     if (SrcReg.isPhysical() && DstReg.isVirtual() && DstSize.isScalable() &&
         !SrcSize.isScalable())
       break;

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https://github.com/llvm/llvm-project/pull/160049