error[E0599]: no method named `get_a` found for enum `Enum` in the current scope
  --> tests/compile_fail/function_name_changed.rs:18:28
   |
9  | enum Enum {
   | --------- method `get_a` not found for this enum
...
18 |     let a = Enum::Variant1.get_a();
   |                            ^^^^^ method not found in `Enum`