Use max length/no collation TStrings for resolving unknown (parameter) instances
Be more explicit about not getting anything from the input type
Use name consistent with other yamls
merge nathanlws: Use max length/no collation TStrings for parameter arguments

Merge pull request #1422 from nathanlws/sql-layer/fix-like-param-collation
https://github.com/FoundationDB/sql-layer/pull/1422