error: expected one of `!` or `::`, found `}`
  --> $DIR/issue-40006.rs:3:1
   |
LL | impl dyn A {
   |            - while parsing this item list starting here
LL |     Y
   |      - expected one of `!` or `::`
LL | }
   | ^
   | |
   | unexpected token
   | the item list ends here

error: expected one of `!` or `::`, found `(`
  --> $DIR/issue-40006.rs:8:6
   |
LL | trait X {
   |         - while parsing this item list starting here
LL |     X() {}
   |      ^ expected one of `!` or `::`
...
LL | }
   | - the item list ends here

error: expected one of `!` or `::`, found `(`
  --> $DIR/issue-40006.rs:16:6
   |
LL | trait A {
   |         - while parsing this item list starting here
LL |     X() {}
   |      ^ expected one of `!` or `::`
LL | }
   | - the item list ends here

error: expected one of `!` or `[`, found `#`
  --> $DIR/issue-40006.rs:19:17
   |
LL |     fn xxx() { ### }
   |                 ^ expected one of `!` or `[`

error: expected one of `!` or `::`, found `=`
  --> $DIR/issue-40006.rs:22:7
   |
LL | trait C {
   |         - while parsing this item list starting here
LL |     L = M;
   |       ^ expected one of `!` or `::`
LL | }
   | - the item list ends here

error: expected one of `!` or `::`, found `=`
  --> $DIR/issue-40006.rs:25:7
   |
LL | trait D {
   |         - while parsing this item list starting here
LL |     Z = { 2 + 3 };
   |       ^ expected one of `!` or `::`
LL | }
   | - the item list ends here

error: expected one of `!` or `::`, found `(`
  --> $DIR/issue-40006.rs:28:9
   |
LL | trait E {
   |         - while parsing this item list starting here
LL |     ::Y ();
   |         ^ expected one of `!` or `::`
LL | }
   | - the item list ends here

error: missing `fn` for method definition
  --> $DIR/issue-40006.rs:32:8
   |
LL | impl S {
   |        - while parsing this item list starting here
LL |     pub hello_method(&self) {
   |        ^
...
LL | }
   | - the item list ends here
   |
help: add `fn` here to parse `hello_method` as a public method
   |
LL |     pub fn hello_method(&self) {
   |         ++

error[E0599]: no method named `hello_method` found for struct `S` in the current scope
  --> $DIR/issue-40006.rs:38:7
   |
LL | struct S;
   | -------- method `hello_method` not found for this struct
...
LL |     S.hello_method();
   |       ^^^^^^^^^^^^ method not found in `S`

error: aborting due to 9 previous errors

For more information about this error, try `rustc --explain E0599`.