[Bug]: PlatformException.code values are not the same between platforms

[ekuleshov]

Please check the following before submitting a new issue.

• I have searched the existing issues.
• I have carefully read the documentation and verified I have added the required platform specific configuration.

Please select affected platform(s)

• Android
• iOS
• Windows

Steps to reproduce

1. Request permission on iOS while another request is in progress, e.g. Permission.locationWhenInUse.request()
2. Observe PlatformException.code is ERROR_ALREADY_REQUESTING_PERMISSIONS
3. Request permission on Android while another request is in progress, e.g. Permission.locationWhenInUse.request()
4. Observe PlatformException.code is PermissionHandler.PermissionManager (Ouch!)

Expected results

The PlatformException.code values for the same errors should be the same between platforms.

Actual results

On Android the PlatformException contains some generic error code. Here is an example stack trace:

PlatformException: PlatformException(PermissionHandler.PermissionManager, A request for permissions is already running, please wait for it to finish before doing another request (note that you can request multiple permissions at the same time)., null, null)
  #0      StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:648)
  #1      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:334)
  File "<asynchronous suspension>"
  #3      MethodChannelPermissionHandler.requestPermissions (package:permission_handler_platform_interface/src/method_channel/method_channel_permission_handler.dart:80)
  File "<asynchronous suspension>"
  #5      PermissionActions.request (package:permission_handler/permission_handler.dart:109)
  File "<asynchronous suspension>"

Code sample

N/A

Screenshots or video

N/A

Version

11.3.1

Flutter Doctor output

Doctor output

[✓] Flutter (Channel stable, 3.24.2, on macOS 13.6.6 22G630 darwin-arm64, locale en-CA)
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