Update test suite to nightly-2025-12-14

Author: dtolnay

tests/common/eq.rs

@@ -110,6 +110,7 @@ use rustc_ast::ast::MetaItemInner;
 use rustc_ast::ast::MetaItemKind;
 use rustc_ast::ast::MetaItemLit;
 use rustc_ast::ast::MethodCall;
+use rustc_ast::ast::MgcaDisambiguation;
 use rustc_ast::ast::ModKind;
 use rustc_ast::ast::ModSpans;
 use rustc_ast::ast::Movability;
@@ -476,7 +477,7 @@ macro_rules! spanless_eq_enum {
 }
 
 spanless_eq_struct!(AngleBracketedArgs; span args);
-spanless_eq_struct!(AnonConst; id value);
+spanless_eq_struct!(AnonConst; id value !mgca_disambiguation);
 spanless_eq_struct!(Arm; attrs pat guard body span id is_placeholder);
 spanless_eq_struct!(AssocItemConstraint; id ident gen_args kind span);
 spanless_eq_struct!(AttrItem; unsafety path args tokens);
@@ -604,8 +605,9 @@ spanless_eq_enum!(LitIntType; Signed(0) Unsigned(0) Unsuffixed);
 spanless_eq_enum!(LocalKind; Decl Init(0) InitElse(0 1));
 spanless_eq_enum!(MacStmtStyle; Semicolon Braces NoBraces);
 spanless_eq_enum!(MatchKind; Prefix Postfix);
-spanless_eq_enum!(MetaItemKind; Word List(0) NameValue(0));
 spanless_eq_enum!(MetaItemInner; MetaItem(0) Lit(0));
+spanless_eq_enum!(MetaItemKind; Word List(0) NameValue(0));
+spanless_eq_enum!(MgcaDisambiguation; AnonConst Direct);
 spanless_eq_enum!(ModKind; Loaded(0 1 2) Unloaded);
 spanless_eq_enum!(Movability; Static Movable);
 spanless_eq_enum!(Mutability; Mut Not);