Switch member calls to isa/dyn_cast/cast/... to free function calls. (#89356)

This change cleans up call sites. Next step is to mark the member
functions deprecated.

See https://mlir.llvm.org/deprecation and
https://discourse.llvm.org/t/preferred-casting-style-going-forward.

mlir/lib/IR/Operation.cpp

@@ -1154,7 +1154,7 @@ LogicalResult OpTrait::impl::verifySameOperandsAndResultRank(Operation *op) {
 
   // delegate function that returns rank of shaped type with known rank
   auto getRank = [](const Type type) {
-    return type.cast<ShapedType>().getRank();
+    return cast<ShapedType>(type).getRank();
   };
 
   auto rank = !rankedOperandTypes.empty() ? getRank(*rankedOperandTypes.begin())