Add test for ICE-125323

Signed-off-by: Shunpoco <[email protected]>

Author: Shunpoco

tests/ui/consts/do-not-ice-long-constant-evaluation-in-for-loop.rs

@@ -0,0 +1,6 @@
+// Issue-125323
+fn main() {
+    for _ in 0..0 { //~ ERROR type annotations needed [E0282]
+        [(); loop {}]; //~ ERROR constant evaluation is taking a long time
+    }
+}

tests/ui/consts/do-not-ice-long-constant-evaluation-in-for-loop.stderr

@@ -0,0 +1,24 @@
+error: constant evaluation is taking a long time
+  --> $DIR/do-not-ice-long-constant-evaluation-in-for-loop.rs:4:14
+   |
+LL |         [(); loop {}];
+   |              ^^^^^^^
+   |
+   = note: this lint makes sure the compiler doesn't get stuck due to infinite loops in const eval.
+           If your compilation actually takes a long time, you can safely allow the lint.
+help: the constant being evaluated
+  --> $DIR/do-not-ice-long-constant-evaluation-in-for-loop.rs:4:14
+   |
+LL |         [(); loop {}];
+   |              ^^^^^^^
+   = note: `#[deny(long_running_const_eval)]` on by default
+
+error[E0282]: type annotations needed
+  --> $DIR/do-not-ice-long-constant-evaluation-in-for-loop.rs:3:14
+   |
+LL |     for _ in 0..0 {
+   |              ^^^^ cannot infer type for struct `std::ops::Range<{integer}>`
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0282`.