chore: more minor lints

Author: Yag000

src/compiler/mod.rs

@@ -112,7 +112,7 @@ impl Compiler {
         let main_scope = CompilerScope::default();
         let mut symbol_table = SymbolTable::new();
         for (i, builtin) in BuiltinFunction::get_builtins_names().iter().enumerate() {
-            symbol_table.define_builtin(i, builtin.to_string());
+            symbol_table.define_builtin(i, builtin.clone());
         }
 
         Compiler {

src/repl/mod.rs

@@ -51,7 +51,7 @@ pub struct ReplCli {
 impl ReplCli {
     fn get_input_type(&self) -> InputType {
         match &self.filename {
-            Some(filename) => InputType::File(filename.to_string()),
+            Some(filename) => InputType::File(filename.clone()),
             None => InputType::Repl,
         }
     }

src/vm/mod.rs

@@ -280,7 +280,7 @@ impl VM {
             }
             (Object::STRING(s1), Object::STRING(s2)) => {
                 let result = match op {
-                    Opcode::Add => s1.to_string() + s2,
+                    Opcode::Add => s1.clone() + s2,
                     _ => {
                         return Err("Unsupported types for binary operation".to_string());
                     }