conlang: Remove "self" keyword

compiler/cl-ast/src/ast.rs

@@ -285,7 +285,6 @@ pub struct Path {
 #[derive(Clone, Debug, PartialEq, Eq, Hash)]
 pub enum PathPart {
     SuperKw,
-    SelfKw,
     SelfTy,
     Ident(Sym),
 }

compiler/cl-ast/src/ast_impl/convert.rs

@@ -4,7 +4,6 @@ use super::*;
 impl<T: AsRef<str>> From<T> for PathPart {
     fn from(value: T) -> Self {
         match value.as_ref() {
-            "self" => PathPart::SelfKw,
             "super" => PathPart::SuperKw,
             ident => PathPart::Ident(ident.into()),
         }

compiler/cl-ast/src/ast_impl/display.rs

@@ -370,7 +370,6 @@ impl Display for PathPart {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
             PathPart::SuperKw => "super".fmt(f),
-            PathPart::SelfKw => "self".fmt(f),
             PathPart::SelfTy => "Self".fmt(f),
             PathPart::Ident(id) => id.fmt(f),
         }

compiler/cl-ast/src/ast_impl/weight_of.rs

@@ -264,7 +264,6 @@ impl WeightOf for PathPart {
     fn weight_of(&self) -> usize {
         match self {
             PathPart::SuperKw => size_of_val(self),
-            PathPart::SelfKw => size_of_val(self),
             PathPart::SelfTy => size_of_val(self),
             PathPart::Ident(interned) => interned.weight_of(),
         }

compiler/cl-ast/src/ast_visitor/fold.rs

@@ -210,7 +210,6 @@ pub trait Fold {
     fn fold_path_part(&mut self, p: PathPart) -> PathPart {
         match p {
             PathPart::SuperKw => PathPart::SuperKw,
-            PathPart::SelfKw => PathPart::SelfKw,
             PathPart::SelfTy => PathPart::SelfTy,
             PathPart::Ident(i) => PathPart::Ident(self.fold_sym(i)),
         }

compiler/cl-ast/src/ast_visitor/walk.rs

@@ -464,7 +464,6 @@ impl Walk for PathPart {
     fn children<'a, V: Visit<'a>>(&'a self, v: &mut V) {
         match self {
             PathPart::SuperKw => {}
-            PathPart::SelfKw => {}
             PathPart::SelfTy => {}
             PathPart::Ident(sym) => sym.visit_in(v),
         }