Add an xfailed test for bogus deep copying of things containing resources

Author: brson

src/test/compile-fail/pinned-deep-copy.rs

@@ -0,0 +1,16 @@
+// xfail-test
+// expected error: mismatched kinds
+
+resource r(i: @mutable int) {
+    *i = *i + 1;
+}
+
+fn main() {
+    let i = @mutable 0;
+    {
+        // Can't do this copy
+        let x = ~~~{y: r(i)};
+        let z = x;
+    }
+    log_err *i;
+}