Update test suite to nightly-2026-03-01

Author: dtolnay

tests/common/eq.rs

@@ -677,7 +677,7 @@ spanless_eq_enum!(PatKind; Missing Wild Ident(0 1 2) Struct(0 1 2 3)
 spanless_eq_enum!(TyKind; Slice(0) Array(0 1) Ptr(0) Ref(0 1) PinnedRef(0 1)
     FnPtr(0) UnsafeBinder(0) Never Tup(0) Path(0 1) TraitObject(0 1)
     ImplTrait(0 1) Paren(0) Infer ImplicitSelf MacCall(0) CVarArgs Pat(0 1)
-    Dummy Err(0));
+    FieldOf(0 1 2) Dummy Err(0));
 
 impl SpanlessEq for Ident {
     fn eq(&self, other: &Self) -> bool {