Change a fixed crash test to a standard test

Fixes <#122587>

Author: tgross35

tests/crashes/122587-1.rs

@@ -0,0 +1,14 @@
+//@ check-pass
+// issue: rust-lang/rust#122587
+
+#![feature(f128)]
+#![feature(f16)]
+#![allow(non_upper_case_globals)]
+
+const h: f16 = 0.0f16;
+const q: f128 = 0.0f128;
+
+pub fn main() {
+    let h = 0.0f16 else { unreachable!() };
+    let q = 0.0f128 else { unreachable!() };
+}