message: Python bindings: drop third_party/ in includes
  Historically, Python bindings were using full path including third_party for
  most headers but not all of them.  This is inconsistent with the rest of MLIR.
  Drop the prefix path in #include directives.
diff: -#include "third_party/llvm/llvm/include/llvm/ADT/SmallVector.h"
  -#include "third_party/llvm/llvm/include/llvm/ADT/StringRef.h"
  -#include "third_party/llvm/llvm/include/llvm/IR/Module.h"
  -#include "third_party/llvm/llvm/include/llvm/Support/TargetSelect.h"
  -#include "third_party/llvm/llvm/include/llvm/Support/raw_ostream.h"
  +#include "llvm/ADT/SmallVector.h"
  +#include "llvm/ADT/StringRef.h"
  +#include "llvm/IR/Module.h"
  +#include "llvm/Support/TargetSelect.h"
  +#include "llvm/Support/raw_ostream.h"
  #include <cstddef>
  #include <unordered_map>
  -#include "third_party/llvm/llvm/projects/google_mlir/include/mlir-c/Core.h"
  -#include "third_party/llvm/llvm/projects/google_mlir/include/mlir/EDSC/Builders.h"
  -#include "third_party/llvm/llvm/projects/google_mlir/include/mlir/EDSC/MLIREmitter.h"
  -#include "third_party/llvm/llvm/projects/google_mlir/include/mlir/EDSC/Types.h"
  -#include "third_party/llvm/llvm/projects/google_mlir/include/mlir/ExecutionEngine/ExecutionEngine.h"
  -#include "third_party/llvm/llvm/projects/google_mlir/include/mlir/IR/Attributes.h"
  -#include "third_party/llvm/llvm/projects/google_mlir/include/mlir/IR/Module.h"
  -#include "third_party/llvm/llvm/projects/google_mlir/include/mlir/Pass/Pass.h"
  -#include "third_party/llvm/llvm/projects/google_mlir/include/mlir/Target/LLVMIR.h"
  -#include "third_party/llvm/llvm/projects/google_mlir/include/mlir/Transforms/Passes.h"
  +#include "mlir-c/Core.h"
  +#include "mlir/EDSC/Builders.h"
  +#include "mlir/EDSC/MLIREmitter.h"
  +#include "mlir/EDSC/Types.h"
  +#include "mlir/ExecutionEngine/ExecutionEngine.h"
  +#include "mlir/IR/Attributes.h"
  +#include "mlir/IR/Function.h"
  +#include "mlir/IR/Module.h"
  +#include "mlir/IR/Types.h"
  +#include "mlir/Pass/Pass.h"
  +#include "mlir/Target/LLVMIR.h"
  +#include "mlir/Transforms/Passes.h"
  #include "pybind11/pybind11.h"
  #include "pybind11/pytypes.h"
  #include "pybind11/stl.h"
  -#include "mlir/IR/Function.h"
  -#include "mlir/IR/Types.h"
  -
  static bool inited = [] {
  llvm::InitializeNativeTarget();
  llvm::InitializeNativeTargetAsmPrinter();
  