Make the property names for testing clearer

Author: ledsun

packages/npm-packages/ruby-wasm-wasi/test/unit/test_object.rb

@@ -325,7 +325,7 @@ def test_method_missing_with_?
         return_object() { return {}; },
         return_null() { return null; },
         return_empty_string() { return ''; },
-        return_number: 42
+        true_property: true
       };
     JS
 
@@ -345,7 +345,7 @@ def test_method_missing_with_?
     assert_false object.return_empty_string?
 
     # Return false when the property is not a function
-    assert_false object.return_number?
+    assert_false object.true_property?
 
     # Return false when function is not defined
     assert_false object.undefined?