Squash some warnings

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>

src/compile/ir.rs

@@ -1,7 +1,7 @@
 use crate::{
     compile::Ctx,
     obj::Sym,
-    syn::{ast, span::*},
+    syn::span::*,
 };
 
 pub type Body = Vec<Stmt>;

src/compile/mod.rs

@@ -4,10 +4,7 @@ pub mod ir;
 pub mod name;
 pub mod visit;
 
-use crate::{
-    syn::ast::Stmt,
-    compile::name::NameStack,
-};
+use crate::compile::name::NameStack;
 
 // * Desugar
 // * Collect names as symbols

src/compile/name.rs

@@ -142,7 +142,7 @@ impl Visit for CollectNames<'_, '_> {
                 self.visit_expr(&i.expr);
                 self.visit_expr(&i.index);
             }
-            Expr::Fun(f) => { /* no-op */ }
+            Expr::Fun(_) => { /* no-op */ }
             Expr::Base(b) => self.visit_base_expr(b),
         }
     }

src/mem/basic.rs

@@ -56,7 +56,7 @@ impl Intern for BasicIntern {
         if let Some(obj_ref) = self.strs.get(s) {
             *obj_ref
         } else {
-            todo!("TODO(obj) intern strings - need attrs somehow")
+            todo!("TODO(obj) intern strings - need attrs for Str type somehow")
             //let s = Str::new(&mut ctx, s.to_string());
             //ctx.gc_mut().alloc(s)
         }