Merge pull request #1909 from dtolnay/fortype

Parse type parameter introducer on closures

Author: dtolnay

src/scan_expr.rs

@@ -92,13 +92,14 @@ static BREAK_VALUE: [(Input, Action); 3] = [
     (Otherwise, SetState(&POSTFIX)),
 ];
 
-static CLOSURE: [(Input, Action); 6] = [
+static CLOSURE: [(Input, Action); 7] = [
     (Keyword("async"), SetState(&CLOSURE)),
     (Keyword("move"), SetState(&CLOSURE)),
     (Punct(","), SetState(&CLOSURE)),
     (Punct(">"), SetState(&CLOSURE)),
     (Punct("|"), SetState(&CLOSURE_ARGS)),
     (ConsumeLifetime, SetState(&CLOSURE)),
+    (ConsumeIdent, SetState(&CLOSURE)),
 ];
 
 static CLOSURE_ARGS: [(Input, Action); 2] = [

tests/repo/mod.rs

@@ -20,11 +20,6 @@ const REVISION: &str = "3672a55b7cfd0a12e7097197b6242872473ffaa7";
 
 #[rustfmt::skip]
 static EXCLUDE_FILES: &[&str] = &[
-    // TODO: non-lifetime binders on closures: `let _ = for<T> || {}`
-    // https://github.com/dtolnay/syn/issues/1906
-    "src/tools/rustfmt/tests/target/non-lifetime-binders.rs",
-    "src/tools/rustfmt/tests/source/non-lifetime-binders.rs",
-
     // TODO: const traits: `pub const trait Trait {}`
     // https://github.com/dtolnay/syn/issues/1887
     "src/tools/clippy/tests/ui/assign_ops.rs",