Remove unnecessary includings for pstring.h (#43752)

* Remove unnecessary including for pstring.h

* Fix typos

paddle/fluid/framework/convert_utils.cc

@@ -11,10 +11,12 @@ distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License. */
+
 #include "paddle/fluid/framework/convert_utils.h"
 // See Note [ Why still include the fluid headers? ]
 #include "paddle/fluid/platform/device/gpu/gpu_info.h"
 
+#include "paddle/phi/common/pstring.h"
 namespace paddle {
 namespace framework {
 

paddle/phi/common/data_type.h

@@ -18,7 +18,12 @@ limitations under the License. */
 #include "paddle/phi/common/bfloat16.h"
 #include "paddle/phi/common/complex.h"
 #include "paddle/phi/common/float16.h"
-#include "paddle/phi/common/pstring.h"
+
+namespace phi {
+namespace dtype {
+class pstring;
+}  // namespace dtype
+}  // namespace phi
 
 namespace paddle {
 namespace experimental {

paddle/phi/core/string_tensor.cc

@@ -15,6 +15,7 @@ limitations under the License. */
 #include "paddle/phi/core/string_tensor.h"
 
 #include "paddle/fluid/memory/malloc.h"
+#include "paddle/phi/common/pstring.h"
 
 namespace phi {
 

paddle/phi/core/string_tensor.h

@@ -14,13 +14,16 @@ limitations under the License. */
 
 #pragma once
 
-#include "paddle/phi/common/pstring.h"
 #include "paddle/phi/core/allocator.h"
 #include "paddle/phi/core/tensor_base.h"
 #include "paddle/phi/core/tensor_meta.h"
 
 namespace phi {
 
+namespace dtype {
+class pstring;
+}  // namespace dtype
+
 /// \brief In Paddle 2.3, we add a new type of Tensor, StringTensor,
 /// which is designed for string data management.
 /// During the entire life cycle of a StringTensor, its device type and key

paddle/phi/kernels/strings/cpu/strings_copy_kernel.cc

@@ -15,6 +15,7 @@ limitations under the License. */
 #include "paddle/phi/kernels/strings/strings_copy_kernel.h"
 
 #include "glog/logging.h"
+#include "paddle/phi/common/pstring.h"
 #include "paddle/phi/core/kernel_registry.h"
 
 namespace phi {

paddle/phi/tests/api/test_strings_lower_upper_api.cc

@@ -19,6 +19,7 @@ limitations under the License. */
 #include "paddle/phi/api/include/strings_api.h"
 #include "paddle/phi/api/lib/utils/allocator.h"
 #include "paddle/phi/backends/all_context.h"
+#include "paddle/phi/common/pstring.h"
 #include "paddle/phi/core/kernel_registry.h"
 #include "paddle/phi/core/string_tensor.h"