fix: support await expressions in proper_super_calls (#235)

lib/src/lints/proper_super_calls/visitors/proper_super_calls_visitor.dart

@@ -103,7 +103,10 @@ class ProperSuperCallsVisitor extends SimpleAstVisitor<void> {
       return false;
     }
 
-    final expression = statement.expression;
+    var expression = statement.expression.unParenthesized;
+    if (expression is AwaitExpression) {
+      expression = expression.expression.unParenthesized;
+    }
 
     return expression is MethodInvocation &&
         expression.target is SuperExpression &&

test/lints/proper_super_calls/proper_super_calls_rule_test.dart

@@ -164,6 +164,54 @@ class MyWidgetState extends State<StatefulWidget> {
     super.initState();   
   }
 }
+''',
+    );
+  }
+
+  void test_no_report_for_async_correct_usage() async {
+    await assertNoDiagnostics(
+      r'''
+import 'package:flutter/src/widgets/framework.dart';
+
+class MyWidgetState extends State<StatefulWidget> {
+  @override
+  Future<void> initState() async {
+    // ignore: use_of_void_result
+    await super.initState();
+    print('');
+  }
+
+  @override
+  Future<void> dispose() async {
+    print('');
+    // ignore: use_of_void_result
+    await super.dispose();
+  }
+}
+''',
+    );
+  }
+
+  void test_no_report_for_parenthesized_and_async_correct_usage() async {
+    await assertNoDiagnostics(
+      r'''
+import 'package:flutter/src/widgets/framework.dart';
+
+class MyWidgetState extends State<StatefulWidget> {
+  @override
+  Future<void> initState() async {
+    // ignore: use_of_void_result
+    await (super.initState());
+    print('');
+  }
+
+  @override
+  Future<void> dispose() async {
+    print('');
+    // ignore: use_of_void_result
+    (await super.dispose());
+  }
+}
 ''',
     );
   }