Auto merge of #3743 - phansch:you_shall_not_pass, r=flip1995

Move run-pass tests to UI tests

This should give us more UI coverage for free.
It also removes the `run-pass` suite, so we now only have the `ui` suite.

tests/compile-test.rs

@@ -133,7 +133,6 @@ fn prepare_env() {
 #[test]
 fn compile_test() {
     prepare_env();
-    run_mode("run-pass", "tests/run-pass".into());
     run_mode("ui", "tests/ui".into());
     run_ui_toml();
 }

tests/run-pass/ice-2727.rs

@@ -1,5 +0,0 @@
-pub fn f(new: fn()) {
-    new();
-}
-
-fn main() {}

tests/run-pass/ice-700.rs

@@ -1,7 +0,0 @@
-#![deny(clippy::all)]
-
-fn core() {}
-
-fn main() {
-    core();
-}

tests/ui/crashes/associated-constant-ice.rs

@@ -1,3 +1,5 @@
+/// Test for https://github.com/rust-lang/rust-clippy/issues/1698
+
 pub trait Trait {
     const CONSTANT: u8;
 }

tests/ui/crashes/cc_seme.rs

@@ -1,4 +1,7 @@
 #[allow(dead_code)]
+
+/// Test for https://github.com/rust-lang/rust-clippy/issues/478
+
 enum Baz {
     One,
     Two,

tests/ui/crashes/ice-1588.rs

@@ -1,5 +1,7 @@
 #![allow(clippy::all)]
 
+/// Test for https://github.com/rust-lang/rust-clippy/issues/1588
+
 fn main() {
     match 1 {
         1 => {},

tests/ui/crashes/ice-1969.rs

@@ -1,5 +1,7 @@
 #![allow(clippy::all)]
 
+/// Test for https://github.com/rust-lang/rust-clippy/issues/1969
+
 fn main() {}
 
 pub trait Convert {

tests/ui/crashes/ice-2727.rs

@@ -0,0 +1,7 @@
+/// Test for https://github.com/rust-lang/rust-clippy/issues/2727
+
+pub fn f(new: fn()) {
+    new();
+}
+
+fn main() {}

tests/ui/crashes/ice-2760.rs

@@ -5,11 +5,11 @@
     dead_code
 )]
 
-// This should not compile-fail with:
-//
-//      error[E0277]: the trait bound `T: Foo` is not satisfied
-//
-// See https://github.com/rust-lang/rust-clippy/issues/2760
+/// This should not compile-fail with:
+///
+///      error[E0277]: the trait bound `T: Foo` is not satisfied
+///
+/// See https://github.com/rust-lang/rust-clippy/issues/2760
 
 trait Foo {
     type Bar;

tests/ui/crashes/ice-2774.rs

@@ -1,6 +1,6 @@
 use std::collections::HashSet;
 
-// See https://github.com/rust-lang/rust-clippy/issues/2774
+/// See https://github.com/rust-lang/rust-clippy/issues/2774
 
 #[derive(Eq, PartialEq, Debug, Hash)]
 pub struct Bar {

tests/ui/crashes/ice-2865.rs

@@ -1,4 +1,7 @@
 #[allow(dead_code)]
+
+/// Test for https://github.com/rust-lang/rust-clippy/issues/2865
+
 struct Ice {
     size: String,
 }

tests/ui/crashes/ice-3151.rs

@@ -1,3 +1,5 @@
+/// Test for https://github.com/rust-lang/rust-clippy/issues/2865
+
 #[derive(Clone)]
 pub struct HashMap<V, S> {
     hash_builder: S,

tests/ui/crashes/ice-3462.rs

@@ -2,6 +2,8 @@
 #![allow(clippy::blacklisted_name)]
 #![allow(unused)]
 
+/// Test for https://github.com/rust-lang/rust-clippy/issues/3462
+
 enum Foo {
     Bar,
     Baz,

tests/ui/crashes/ice-700.rs

@@ -0,0 +1,9 @@
+#![deny(clippy::all)]
+
+/// Test for https://github.com/rust-lang/rust-clippy/issues/700
+
+fn core() {}
+
+fn main() {
+    core();
+}

tests/ui/crashes/ice_exacte_size.rs

@@ -1,5 +1,7 @@
 #![deny(clippy::all)]
 
+/// Test for https://github.com/rust-lang/rust-clippy/issues/1336
+
 #[allow(dead_code)]
 struct Foo;
 

tests/ui/crashes/if_same_then_else.rs

@@ -1,5 +1,7 @@
 #![deny(clippy::if_same_then_else)]
 
+/// Test for https://github.com/rust-lang/rust-clippy/issues/2426
+
 fn main() {}
 
 pub fn foo(a: i32, b: i32) -> Option<&'static str> {

tests/ui/crashes/issue-2862.rs

@@ -1,3 +1,5 @@
+/// Test for https://github.com/rust-lang/rust-clippy/issues/2826
+
 pub trait FooMap {
     fn map<B, F: Fn() -> B>(&self, f: F) -> B;
 }

tests/ui/crashes/issue-825.rs

@@ -1,5 +1,7 @@
 #![allow(warnings)]
 
+/// Test for https://github.com/rust-lang/rust-clippy/issues/825
+
 // this should compile in a reasonable amount of time
 fn rust_type_id(name: &str) {
     if "bool" == &name[..]

tests/ui/crashes/match_same_arms_const.rs

@@ -1,5 +1,7 @@
 #![deny(clippy::match_same_arms)]
 
+/// Test for https://github.com/rust-lang/rust-clippy/issues/2427
+
 const PRICE_OF_SWEETS: u32 = 5;
 const PRICE_OF_KINDNESS: u32 = 0;
 const PRICE_OF_DRINKS: u32 = 5;

tests/ui/crashes/mut_mut_macro.rs

@@ -1,14 +1,16 @@
 #![deny(clippy::mut_mut, clippy::zero_ptr, clippy::cmp_nan)]
 #![allow(dead_code)]
 
-// compiletest + extern crates doesn't work together
-//#[macro_use]
-//extern crate lazy_static;
+// FIXME: compiletest + extern crates doesn't work together. To make this test work, it would need
+// the following three lines and the lazy_static crate.
+//
+//     #[macro_use]
+//     extern crate lazy_static;
+//     use std::collections::HashMap;
 
-//use std::collections::HashMap;
+/// ensure that we don't suggest `is_nan` and `is_null` inside constants
+/// FIXME: once const fn is stable, suggest these functions again in constants
 
-// ensure that we don't suggest `is_nan` and `is_null` inside constants
-// FIXME: once const fn is stable, suggest these functions again in constants
 const BAA: *const i32 = 0 as *const i32;
 static mut BAR: *const i32 = BAA;
 static mut FOO: *const i32 = 0 as *const i32;

tests/ui/crashes/returns.rs

@@ -1,3 +1,5 @@
+/// Test for https://github.com/rust-lang/rust-clippy/issues/1346
+
 #[deny(warnings)]
 fn cfg_return() -> i32 {
     #[cfg(unix)]

tests/ui/crashes/single-match-else.rs

@@ -1,5 +1,7 @@
 #![warn(clippy::single_match_else)]
 
+//! Test for https://github.com/rust-lang/rust-clippy/issues/1588
+
 fn main() {
     let n = match (42, 43) {
         (42, n) => n,