Move /src/test to /tests

tests/ui/functions-closures/closure-inference.rs

@@ -0,0 +1,11 @@
+// run-pass
+#![allow(unused_braces)]
+
+fn foo(i: isize) -> isize { i + 1 }
+
+fn apply<A, F>(f: F, v: A) -> A where F: FnOnce(A) -> A { f(v) }
+
+pub fn main() {
+    let f = {|i| foo(i)};
+    assert_eq!(apply(f, 2), 3);
+}