Here is a list of all documented namespace enum values with links to the namespaces they belong to:

CaseInsensitiveComparison : swift::misc
DisabledForComparison : swift::misc
DisabledForDebugging : swift::misc
DisabledForHashing : swift::misc
DisabledForJson : swift::misc
DisabledForMarshalling : swift::misc
LosslessMarshalling : swift::misc
RequiredForJson : swift::misc