parser: fix more pg test suite errors part 3 (#522)

unnamed function path types now work correctly when they're not named

Author: sbdchd

crates/squawk_lexer/src/lib.rs

@@ -389,6 +389,7 @@ impl Cursor<'_> {
             }
         }
 
+        // we have a dollar quoted string deliminated with `$$`
         if start.is_empty() {
             loop {
                 self.eat_while(|c| c != '$');
@@ -428,9 +429,9 @@ impl Cursor<'_> {
                 }
 
                 // closing '$'
-                if self.first() == '$' {
+                let terminated = match_count == start.len();
+                if self.first() == '$' && terminated {
                     self.bump();
-                    let terminated = match_count == start.len();
                     return TokenKind::Literal {
                         kind: LiteralKind::DollarQuotedString { terminated },
                     };
@@ -586,6 +587,14 @@ $foo$hello$world$bar$
 "#))
     }
 
+    #[test]
+    fn dollar_strings_part2() {
+        assert_debug_snapshot!(lex(r#"
+DO $doblock$
+end
+$doblock$;"#))
+    }
+
     #[test]
     fn dollar_quote_mismatch_tags_simple() {
         assert_debug_snapshot!(lex(r#"

crates/squawk_lexer/src/snapshots/squawk_lexer__tests__dollar_strings_part2.snap

@@ -0,0 +1,11 @@
+---
+source: crates/squawk_lexer/src/lib.rs
+expression: "lex(r#\"\nDO $doblock$\nend\n$doblock$;\"#)"
+---
+[
+    "\n" @ Whitespace,
+    "DO" @ Ident,
+    " " @ Whitespace,
+    "$doblock$\nend\n$doblock$" @ Literal { kind: DollarQuotedString { terminated: true } },
+    ";" @ Semi,
+]