Convert the regression test for a coroutine ICE from a crash test to an UI test

Author: jakubadamw

tests/crashes/139570.rs

@@ -0,0 +1,13 @@
+//! Regression test for <https://github.com/rust-lang/rust/issues/139570>.
+//! A coroutine with too many parameters should emit errors without an ICE.
+
+#![feature(coroutines)]
+
+fn main() {
+    #[coroutine]
+    |(1, 42), ()| {
+        //~^ ERROR too many parameters for a coroutine
+        //~| ERROR refutable pattern in closure argument
+        yield
+    };
+}

tests/ui/coroutine/too-many-parameters-ice.rs

@@ -0,0 +1,18 @@
+error[E0628]: too many parameters for a coroutine (expected 0 or 1 parameters)
+  --> $DIR/too-many-parameters-ice.rs:8:5
+   |
+LL |     |(1, 42), ()| {
+   |     ^^^^^^^^^^^^^
+
+error[E0005]: refutable pattern in closure argument
+  --> $DIR/too-many-parameters-ice.rs:8:6
+   |
+LL |     |(1, 42), ()| {
+   |      ^^^^^^^ patterns `(i32::MIN..=0_i32, _)` and `(2_i32..=i32::MAX, _)` not covered
+   |
+   = note: the matched value is of type `(i32, i32)`
+
+error: aborting due to 2 previous errors
+
+Some errors have detailed explanations: E0005, E0628.
+For more information about an error, try `rustc --explain E0005`.