random forgotten test case

Author: nikomatsakis

src/test/run-pass/borrowck-fixed-length-vecs.rs

@@ -0,0 +1,8 @@
+// xfail-fast   (compile-flags unsupported on windows)
+// compile-flags:--borrowck=err
+
+fn main() {
+    let x = [22]/1;
+    let y = &x[0];
+    assert *y == 22;
+}