TEST :model groups (ALL) : choice: with children element, annotation
http://www.w3.org/TR/2004/REC-xmlschema-1-20041028/#Model_Groups
| Item | Value | 
|---|---|
| title | mgI020 - mgI020 | 
| name | mgI020 | 
| source | ../mgI020.xsd | 
| schemaName | ../mgI020.xsd | 
| keywords | schema negative | 
| package | javasoft.sqe.tests.modelgroups.mgi020 |