Expand scope for receive syntax
Enable generate jump code for extended scope
Change to simple definition
Move cxxr functions into boot.yl
Use write/ss in the stat tool
Remove `print/ss` function
Make `print` function as basic
Move definition order
Remove `find-index` function and use `position`
Generate list for HALT opcode
Reduce string intern for default stream
Tweak definition order
Create `propagate-scope-sets` function
Return formatted string if the second argument for `format` is nil