Enable pubspec dependency sorting lint (#3983)

Author: stuartmorgan-g

analysis_options.yaml

@@ -198,7 +198,6 @@ linter:
     - slash_for_doc_comments
     # - sort_child_properties_last # not yet tested
     - sort_constructors_first
-    # - sort_pub_dependencies # prevents separating pinned transitive dependencies
     - sort_unnamed_constructors_first
     - test_types_in_equals
     - throw_in_finally
@@ -243,3 +242,6 @@ linter:
     # separately when moving to a shared file.
     - no_runtimeType_toString # use objectRuntimeType from package:foundation
     - public_member_api_docs # see https://github.com/flutter/flutter/wiki/Style-guide-for-Flutter-repo#documentation-dartdocs-javadocs-etc
+    # Flutter has a specific use case for dependencies that are intentionally
+    # not sorted, which doesn't apply to this repo.
+    - sort_pub_dependencies

packages/espresso/example/pubspec.yaml

@@ -11,19 +11,18 @@ dependencies:
     sdk: flutter
 
 dev_dependencies:
-  flutter_test:
-    sdk: flutter
-  flutter_driver:
-    sdk: flutter
-  pedantic: ^1.10.0
-
   espresso:
     # When depending on this package from a real application you should use:
     #   espresso: ^x.y.z
     # See https://dart.dev/tools/pub/dependencies#version-constraints
     # The example app is bundled with the plugin so we use a path dependency on
     # the parent directory to use the current plugin's version.
     path: ../
+  flutter_driver:
+    sdk: flutter
+  flutter_test:
+    sdk: flutter
+  pedantic: ^1.10.0
 
 flutter:
   uses-material-design: true

packages/path_provider/path_provider/example/pubspec.yaml

@@ -14,10 +14,10 @@ dependencies:
     path: ../
 
 dev_dependencies:
-  integration_test:
-    sdk: flutter
   flutter_driver:
     sdk: flutter
+  integration_test:
+    sdk: flutter
   pedantic: ^1.10.0
 
 flutter:

packages/path_provider/path_provider/pubspec.yaml

@@ -32,10 +32,10 @@ dependencies:
   path_provider_windows: ^2.0.0
 
 dev_dependencies:
-  flutter_test:
-    sdk: flutter
   flutter_driver:
     sdk: flutter
+  flutter_test:
+    sdk: flutter
   integration_test:
     sdk: flutter
   pedantic: ^1.10.0

packages/path_provider/path_provider_linux/example/pubspec.yaml

@@ -19,10 +19,10 @@ dependencies:
     path: ../
 
 dev_dependencies:
-  flutter_test:
-    sdk: flutter
   flutter_driver:
     sdk: flutter
+  flutter_test:
+    sdk: flutter
   integration_test:
     sdk: flutter
 

packages/path_provider/path_provider_macos/example/pubspec.yaml

@@ -15,10 +15,10 @@ dependencies:
   path_provider_platform_interface: ^2.0.0
 
 dev_dependencies:
-  integration_test:
-    sdk: flutter
   flutter_driver:
     sdk: flutter
+  integration_test:
+    sdk: flutter
   pedantic: ^1.8.0
 
 flutter:

packages/path_provider/path_provider_windows/example/pubspec.yaml

@@ -14,10 +14,10 @@ dependencies:
     path: ../
 
 dev_dependencies:
-  integration_test:
-    sdk: flutter
   flutter_driver:
     sdk: flutter
+  integration_test:
+    sdk: flutter
   pedantic: ^1.10.0
 
 flutter: