The `Program` node kind is introduced to represent top-level code
blocks, distinguishing them from `Block` nodes which introduce new
scopes. This commit updates various compiler passes to handle the
`Program` node, ensuring correct AST traversal and processing.
The `Program` node is similar to `Block`, but its definitions propagate
to the enclosing scope, unlike `Block` which creates a new, isolated
scope. This distinction is important for how variables and functions are
resolved within the compiled code.
Brummel
02ea2f0d80