Function seed_this

src/completion/variable/forward_walk.rs:1533–1541

Recursively walk the AST to find function and method bodies, running the forward walker on each. Seed `$this` in the scope when inside a non-static class method. This creates a `ResolvedType` from the enclosing `ClassInfo` and stores it under `"$this"`. The scope-based variable resolver then returns this entry for any `$this` lookup, eliminating the need to remain unresolved.

(scope: &mut ScopeState, current_class: &ClassInfo)

/// returns this entry for any `$this` lookup, eliminating the need to
/// remain unresolved.
fn seed_this(scope: &mut ScopeState, current_class: &ClassInfo) {
    if current_class.name.is_empty() {
        return;
    }
    scope.set(
        "$this",
        vec![ResolvedType::from_class(current_class.clone())],
    );
}

/// Walk a sequence of top-level (or namespace-level) statements,
/// maintaining a shared `ScopeState` for code that lives outside any