[#] 2 [3 to 1] PASSED [2 to 1] PASSED [3 to 2] PASSED [1 to 2] PASSED [2 to 3] PASSED [1 to 3] PASSED [Specification reference] specification [Input file] file [Testcase description] Built-in root tag with a schema-informed child element [Test case] 
| all | header | schemaId | builtinElementGrammar | builtin.toSchemaInformed-00