- cast functions in separate scopes are no longer omitted or removed
- package item reordering excludes locally declared names
- test runner ensures output is stable after first iteration

- full import and export support
- simplify AST representation of import and export
- allow package-scoped identifiers invoked as subroutines
- use scoped name resolution for identifiers in packages
- merge package item nesting conversion into package conversion
- fix handling of colliding enum items in separate modules
- fix visiting enum item exprs in types

- error for unbound module instance interface ports
- warning for converting an interface alone
- warning for converting a package alone
- update terminology for modules removed by interface conversion

- assertions, gen case, and inout
- simplify block codegen
- remove blank lines in tasks with no inputs

- support for interface instance arrays
- support for interface-using module instance arrays
- support for modport array bindings
- fix modport bindings shadowed in nested instances

- fix handling of truncation for unpacking
- fix handling of final limited-size chunk
- support unpacking in a declarations with assignments
- support streaming concatenations in continuous assignment

- type of strings are left implicit
- type of implicitly-typed params uses the type of the default value
- prevent exponential blowup for large ternary expressions

- module instances with modport bindings are now inlined
- support for modports in generate loops
- support for generic interfaces
- implied modport instance propagation
- add error message for interface instances missing port list

- reduces the number of cast functions which are generated
- adjust package_function_cast to preserve cast converage
- fix issue where cast functions would be generated before localparam
  substitution within a procedure