Changed xmlSchemaFormatIDCKeySequence() to use

* xmlschemas.c: Changed xmlSchemaFormatIDCKeySequence()
  to use xmlSchemaGetCanonValueWhtspExt() in order to
  correctly report values for xs:anySimpleType.
* test/schemas/idc-keyref-err1*
  result/schemas/idc-keyref-err1*: Added a test for this change.
6 files changed