Remove `NtBlock`, `Nonterminal`, and `TokenKind::Interpolated`.

`NtBlock` is the last remaining variant of `Nonterminal`, so once it is
gone then `Nonterminal` can be removed as well.

1 files changed, 1 insertions, 19 deletions

diff --git a/compiler/rustc_attr_parsing/src/parser.rs b/compiler/rustc_attr_parsing/src/parser.rs
index a8a1460591c..384fae59873 100644
--- a/compiler/rustc_attr_parsing/src/parser.rs
+++ b/compiler/rustc_attr_parsing/src/parser.rs
@@ -485,25 +485,7 @@ impl<'a> MetaItemListParserContext<'a> {
         }
 
         // or a path.
-        let path =
-            if let Some(TokenTree::Token(Token { kind: token::Interpolated(_), span, .. }, _)) =
-                self.inside_delimiters.peek()
-            {
-                self.inside_delimiters.next();
-                // We go into this path if an expr ended up in an attribute that
-                // expansion did not turn into a literal. Say, `#[repr(align(macro!()))]`
-                // where the macro didn't expand to a literal. An error is already given
-                // for this at this point, and then we do continue. This makes this path
-                // reachable...
-                let e = self.dcx.span_delayed_bug(
-                    *span,
-                    "expr in place where literal is expected (builtin attr parsing)",
-                );
-
-                return Some(MetaItemOrLitParser::Err(*span, e));
-            } else {
-                self.next_path()?
-            };
+        let path = self.next_path()?;
 
         // Paths can be followed by:
         // - `(more meta items)` (another list)