Refactored mutability

crates/parser/src/ast/expr.rs

@@ -37,7 +37,6 @@ pub enum Pattern {
     Tuple(Vec<Identifier>),
     Literal(Literal),
     Path(bool, Path),
-    Id(Identifier),
 }
 
 #[derive(Debug, Clone, Serialize)]

crates/parser/src/ast/statement.rs

@@ -31,7 +31,6 @@ pub enum Statement {
         body: StatementBody,
     },
     For {
-        mutable: bool,
         pattern: Pattern,
         iterator: Expression,
         body: StatementBody,
@@ -46,7 +45,6 @@ pub enum Statement {
 
 #[derive(Debug, Clone, Serialize)]
 pub struct VarDecl {
-    pub mutable: bool,
     pub name: Pattern,
     pub type_: Option<TypeExpr>,
 }