Clarify todo/fixmes

crates/nu-protocol/src/ast/expr.rs

@@ -26,7 +26,7 @@ pub enum Expr {
     ValueWithUnit(Box<Expression>, Spanned<Unit>),
     Filepath(String),
     GlobPattern(String),
-    String(String), // FIXME: improve this in the future?
+    String(String),
     CellPath(CellPath),
     FullCellPath(Box<FullCellPath>),
     Signature(Box<Signature>),

crates/nu-protocol/src/ast/expression.rs

@@ -39,7 +39,7 @@ impl Expression {
                     | Operator::In
                     | Operator::NotIn => 80,
                     Operator::And => 50,
-                    Operator::Or => 40, // TODO: should we have And and Or be different precedence?
+                    Operator::Or => 40,
                 }
             }
             _ => 0,