lex: ignore comments

This is a cheap hack to just omit comments from
the token stream for now.  I doubt they will ever
be used at all, so their existence would just mean
extra work for the parser.

src/lex/mod.rs

@@ -67,7 +67,12 @@ impl Iterator for Lexer<'_> {
             '/' => self.token_ok(token::Kind::Slash),
             '%' => self.token_ok(token::Kind::Percent),
 
-            '#' => self.read_comment(),
+            '#' => {
+                self.read_comment();
+                // we don't need comments for now and they would
+                // only confuse the parser so let's just Not
+                self.next()?
+            }
             '"' => self.read_string_literal(),
             '0' => self.read_prefix_int_literal(),
             _c @ '1'..='9' => self.read_int_literal(10),
@@ -158,6 +163,7 @@ impl<'a> Lexer<'a> {
         self.cursor.chop();
         let mut raw = String::new();
         for c in &mut self.cursor {
+            // TODO: string escape sequences are a thing
             if c == '"' {
                 self.cursor.chop();
                 return self.token_raw_ok(token::Kind::StringLiteral, raw);