add ui-tests

Author: jyn514

src/test/ui/const-generics/array-impls/alloc-traits-impls-length-32.rs

@@ -14,6 +14,10 @@ where
     Vec::<A>::new()
 }
 
+pub fn yes_array_into_vec<T>() -> Vec<T> {
+    [].into()
+}
+
 use std::collections::VecDeque;
 
 pub fn yes_vecdeque_partial_eq_array<A, B>() -> impl PartialEq<[B; 32]>

src/test/ui/const-generics/array-impls/alloc-types-no-impls-length-33.rs

@@ -2,6 +2,11 @@
 
 use std::{convert::TryFrom, rc::Rc, sync::Arc};
 
+pub fn no_vec() {
+    let v: Vec<_> = [0; 33].into();
+    //~^ ERROR the trait bound `std::vec::Vec<u8>: std::convert::From<[u8; 33]>` is not satisfied
+}
+
 pub fn no_box() {
     let boxed_slice = Box::new([0; 33]) as Box<[i32]>;
     let boxed_array = <Box<[i32; 33]>>::try_from(boxed_slice);