Move tests cast

tests/ui/issues/issue-45730.rs → tests/ui/cast/ambiguous-raw-pointer-cast-errors.rs

@@ -1,3 +1,5 @@
+//! Regression test for https://github.com/rust-lang/rust/issues/45730
+
 use std::fmt;
 fn main() {
     let x: *const _ = 0 as _; //~ ERROR cannot cast

tests/ui/issues/issue-45730.stderr → tests/ui/cast/ambiguous-raw-pointer-cast-errors.stderr

@@ -1,21 +1,21 @@
 error[E0641]: cannot cast to a pointer of an unknown kind
-  --> $DIR/issue-45730.rs:3:28
+  --> $DIR/ambiguous-raw-pointer-cast-errors.rs:5:28
    |
 LL |     let x: *const _ = 0 as _;
    |                            ^ needs more type information
    |
    = note: the type information given here is insufficient to check whether the pointer cast is valid
 
 error[E0641]: cannot cast to a pointer of an unknown kind
-  --> $DIR/issue-45730.rs:5:28
+  --> $DIR/ambiguous-raw-pointer-cast-errors.rs:7:28
    |
 LL |     let x: *const _ = 0 as *const _;
    |                            ^^^^^^^^ needs more type information
    |
    = note: the type information given here is insufficient to check whether the pointer cast is valid
 
 error[E0641]: cannot cast to a pointer of an unknown kind
-  --> $DIR/issue-45730.rs:8:44
+  --> $DIR/ambiguous-raw-pointer-cast-errors.rs:10:44
    |
 LL |     let x = 0 as *const i32 as *const _ as *mut _;
    |                                            ^^^^^^ needs more type information

tests/ui/issues/issue-23699.rs → tests/ui/cast/as-cast-unifies-raw-pointer-and-fn-type.rs

@@ -1,3 +1,5 @@
+//! Regression test for https://github.com/rust-lang/rust/issues/23699
+
 //@ run-pass
 #![allow(unused_variables)]
 fn gimme_a_raw_pointer<T>(_: *const T) { }

tests/ui/issues/issue-36936.rs → tests/ui/cast/cast-not-treated-as-lvalue.rs

@@ -1,3 +1,5 @@
+//! Regression test for https://github.com/rust-lang/rust/issues/36936
+
 //@ run-pass
 // check that casts are not being treated as lexprs.
 

tests/ui/cast/cast-ptr-to-fat-ptr.rs

@@ -0,0 +1,9 @@
+//! Regression test for https://github.com/rust-lang/rust/issues/30615
+//! This test confirms that valid code casting a thin pointer to a fat pointer does not cause ICE
+//! and compiles.
+
+//@ run-pass
+fn main() {
+    &0u8 as *const u8 as *const dyn PartialEq<u8>;
+    &[0u8] as *const [u8; 1] as *const [u8];
+}

tests/ui/cast/invalid-thin-to-fat-pointer-cast.rs

@@ -0,0 +1,10 @@
+//! Regression test for https://github.com/rust-lang/rust/issues/31511
+//! This test confirms that a helpful enough error is shown when you try
+//! to incorrectly cast a thin pointer to a fat pointer.
+
+fn cast_thin_to_fat(x: *const ()) {
+    x as *const [u8];
+    //~^ ERROR: cannot cast thin pointer `*const ()` to wide pointer `*const [u8]`
+}
+
+fn main() {}

tests/ui/issues/issue-31511.stderr → tests/ui/cast/invalid-thin-to-fat-pointer-cast.stderr

@@ -1,5 +1,5 @@
 error[E0607]: cannot cast thin pointer `*const ()` to wide pointer `*const [u8]`
-  --> $DIR/issue-31511.rs:2:5
+  --> $DIR/invalid-thin-to-fat-pointer-cast.rs:6:5
    |
 LL |     x as *const [u8];
    |     ^^^^^^^^^^^^^^^^

tests/ui/issues/issue-43291.rs → tests/ui/cast/negative-integer-cast-to-pointer.rs

@@ -1,3 +1,5 @@
+//! Regression test for https://github.com/rust-lang/rust/issues/43291
+
 //@ run-pass
 pub fn main() {
     assert_eq!(!0usize as *const (), foo(0, 1));

tests/ui/issues/issue-22312.rs → tests/ui/cast/non-primitive-cast-self-to-dyn-index.rs

@@ -1,3 +1,5 @@
+//! Regression test for https://github.com/rust-lang/rust/issues/22312
+
 use std::ops::Index;
 
 pub trait Array2D: Index<usize> + Sized {

tests/ui/issues/issue-22312.stderr → tests/ui/cast/non-primitive-cast-self-to-dyn-index.stderr

@@ -1,5 +1,5 @@
 error[E0605]: non-primitive cast: `Self` as `&dyn Index<usize, Output = <Self as Index<usize>>::Output>`
-  --> $DIR/issue-22312.rs:11:24
+  --> $DIR/non-primitive-cast-self-to-dyn-index.rs:13:24
    |
 LL |         let indexer = &(*self as &dyn Index<usize, Output = <Self as Index<usize>>::Output>);
    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ invalid cast

tests/ui/issues/issue-17336.rs → tests/ui/cast/raw-pointer-from-str-comparison.rs

@@ -1,3 +1,5 @@
+//! Regression test for https://github.com/rust-lang/rust/issues/17336
+
 //@ build-pass
 
 #![allow(unused_must_use)]