An element or attribute default/fixed value is now validated against an inline
type (an inline simpleType, or an inline complex type with simpleContent) the
same way it already was against a named type reference. Validated against the
simpleContent base's value space, so only a clear value-space mismatch (a
non-numeric default on a decimal-based type) is flagged.
XSTS invalid-schemas-accepted 185 to 183, no other bucket moved.