[clang] [clang-tools-extra] [mlir] [llvm] [mlir][linalg] Refactor `EraseIdentityGenericOp` to be reused by other `LinalgOp`s (PR #80466)

[via llvm-commits]

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@@ -1907,6 +1907,20 @@ void BroadcastOp::getEffects(
                         getDpsInits());
 }
 
+LogicalResult BroadcastOp::canonicalize(BroadcastOp op,
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srcarroll wrote:

any thoughts? :)

https://github.com/llvm/llvm-project/pull/80466