Gather together usefulness tests

I took most tests that were testing only for match exhaustiveness,
pattern refutability or match arm reachability, and put them in
the same test folder.

1 files changed, 0 insertions, 9 deletions

diff --git a/src/test/ui/refutable-pattern-errors.rs b/src/test/ui/refutable-pattern-errors.rs
deleted file mode 100644
index d4afe17ca74..00000000000
--- a/src/test/ui/refutable-pattern-errors.rs
+++ /dev/null
@@ -1,9 +0,0 @@
-// ignore-tidy-linelength
-
-fn func((1, (Some(1), 2..=3)): (isize, (Option<isize>, isize))) { }
-//~^ ERROR refutable pattern in function argument: `(_, _)` not covered
-
-fn main() {
-    let (1, (Some(1), 2..=3)) = (1, (None, 2));
-    //~^ ERROR refutable pattern in local binding: `(std::i32::MIN..=0i32, _)` and `(2i32..=std::i32::MAX, _)` not covered
-}