[llvm] [CodeGen] Add laneBitmask as new MachineOperand type, utilised by newly defined COPY_LANEMASK instruction (PR #151944)

[Sameer Sahasrabuddhe via llvm-commits]

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@@ -1428,8 +1428,10 @@ class MachineInstr
     return getOpcode() == TargetOpcode::BUNDLE;
   }
 
-  bool isCopy() const {
-    return getOpcode() == TargetOpcode::COPY;
+  bool isCopy() const { return getOpcode() == TargetOpcode::COPY; }
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ssahasra wrote:

Unrelated whitespace change?

https://github.com/llvm/llvm-project/pull/151944