TEST: Fixed testing data to conform to new array schema.

unittests/table_json_conversion/data/error_simple_data.json

unittests/table_json_conversion/data/indirect_data.json

...ests/table_json_conversion/data/multiple_choice_data.json

unittests/table_json_conversion/data/multiple_refs_data.json

unittests/table_json_conversion/data/simple_data.json

...s/table_json_conversion/data/simple_data_ascii_chars.json