[mlir] Deprecate OpBuilder::create in favor of free functions

Author: kuhar

mlir/include/mlir/IR/Builders.h

@@ -502,6 +502,7 @@ class OpBuilder : public Builder {
 public:
  /// Create an operation of specific op type at the current insertion point.
  template <typename OpTy, typename... Args>
+ [[deprecated("Use OpTy::create instead")]]
  OpTy create(Location location, Args &&...args) {
  OperationState state(location,
  getCheckRegisteredInfo<OpTy>(location.getContext()));
@@ -517,9 +518,9 @@ class OpBuilder : public Builder {
  /// the results of the operation.
  ///
  /// Note: This performs opportunistic eager folding during IR construction.
- /// The folders are designed to operate efficiently on canonical IR, which 
+ /// The folders are designed to operate efficiently on canonical IR, which
  /// this API does not enforce. Complete folding isn't only expected in the
- /// context of canonicalization which intertwine folders with pattern 
+ /// context of canonicalization which intertwine folders with pattern
  /// rewrites until fixed-point.
  template <typename OpTy, typename... Args>
  void createOrFold(SmallVectorImpl<Value> &results, Location location,