dart_eval runtime exception: EvalUnknownPropertyException (toString)

[HXiaoMing]

Test case:

import 'package:dart_eval/dart_eval.dart';
import 'package:test/test.dart';

void main() {
  group('hashCode tests', () {
    late Compiler compiler;

    setUp(() {
      compiler = Compiler();
    });

    test('Using hashCode', () {
      final program = compiler.compile({
        'example': {
          'main.dart': '''
            bool main() {
              final value = 5;
              final valueHashCode = value.hashCode;
              print('hashCode \$valueHashCode');
              return true;
            }
          '''
        }
      });

      final runtime = Runtime.ofProgram(program);
      expect(runtime.executeLib('package:example/main.dart', 'main'), true);
    });
  });
}

Error:
package:dart_eval/src/eval/runtime/runtime.dart 832:7 Runtime.execute
package:dart_eval/src/eval/runtime/runtime.dart 810:12 Runtime.executeLib
test/wrapper_test.dart 46:30 main..

dart_eval runtime exception: EvalUnknownPropertyException (toString)
#0 EvalFunction.$getProperty (package:dart_eval/src/eval/runtime/function.dart:29:9)
#1 InvokeDynamic.run (package:dart_eval/src/eval/runtime/ops/objects.dart:99:45)
#2 Runtime.execute (package:dart_eval/src/eval/runtime/runtime.dart:823:12)
at main()

RUNTIME STATE

Program offset: 35
Stack sample: [L0: $1, L1: ${true}, L2: $"count ", L3: $"1", L4: $"count 1", L5: $", isInt ", L6: $"count 1, isInt ", L7: $"true", L8: $"count 1, isInt true", L9: $""]
Args sample: []
Call stack: [0, -1]
TRACE:
29: PushReturnValue ()
30: InvokeExternal (Ex#107)
31: PushReturnValue ()
32: PushConstant (C5)
33: PushObjectProperty (L12.C6)
34: PushReturnValue ()
35: InvokeDynamic (L14.C1) <<< EXCEPTION
36: PushReturnValue ()
37: BoxString (L13)
38: PushArg (L15)

[ethanblake4]

Fixed in v0.7.5