Rearrange logic of needs_par computation in print_let

True || needs_par_as_let_scrutinee(...) is always true.

compiler/rustc_ast_pretty/src/pprust/state.rs

@@ -1166,8 +1166,11 @@ impl<'a> State<'a> {
                 | ast::ExprKind::Closure(..)
                 | ast::ExprKind::Ret(..)
                 | ast::ExprKind::Yeet(..) => true,
-                _ => parser::contains_exterior_struct_lit(expr),
+                _ => {
-            } || parser::needs_par_as_let_scrutinee(expr.precedence().order()),
+                    parser::contains_exterior_struct_lit(expr)
+                        || parser::needs_par_as_let_scrutinee(expr.precedence().order())
+                }
+            },
         );
     }