Another test for typestate and expr_fn

Author: catamorphism

src/test/compile-fail/fn-expr-typestate-2.rs

@@ -0,0 +1,10 @@
+// error-pattern:Unsatisfied precondition
+// xfail-stage0
+
+fn main() {
+  auto j = (fn () -> int {
+        let int i;
+        ret i;
+    })();
+  log_err j;
+}