Warn about @deprecated positional parameters

pkg/analyzer/lib/src/generated/resolver.dart

Index: pkg/analyzer/lib/src/generated/resolver.dart
diff --git a/pkg/analyzer/lib/src/generated/resolver.dart b/pkg/analyzer/lib/src/generated/resolver.dart
index 607f438f4dbf357b00af644ff0f1af2e174a1db3..7f00554dff199a83c5216a2dca643eaf51cbced1 100644
--- a/pkg/analyzer/lib/src/generated/resolver.dart
+++ b/pkg/analyzer/lib/src/generated/resolver.dart
@@ -94,6 +94,12 @@ class BestPracticesVerifier extends RecursiveAstVisitor<Object> {
 
   @override
   Object visitArgumentList(ArgumentList node) {
+    for (Expression argument in node.arguments) {
+      ParameterElement parameter = argument.bestParameterElement;
+      if (parameter?.parameterKind == ParameterKind.POSITIONAL) {
+        _checkForDeprecatedMemberUse(parameter, argument);
+      }
+    }
     _checkForArgumentTypesNotAssignableInList(node);
     return super.visitArgumentList(node);
   }