Insert missing maybe_print_comment call for class destructors

While it wasn't the original issue, the first program from #2487
failed the pretty-printing test because of this, so it's still a good
test case :-)

It also turns out that the second program from #2487 now triggers a
kind error, so I figured I might as well add it as a test case.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/libsyntax/print/pprust.rs b/src/libsyntax/print/pprust.rs
index a8df8d85092..d4e66137d67 100644
--- a/src/libsyntax/print/pprust.rs
+++ b/src/libsyntax/print/pprust.rs
@@ -539,6 +539,7 @@ fn print_item(s: ps, &&item: @ast::item) {
           print_block(s, ctor.node.body);
           option::iter(m_dtor) {|dtor|
             hardbreak_if_not_bol(s);
+            maybe_print_comment(s, dtor.span.lo);
             head(s, "drop");
             print_block(s, dtor.node.body);
           }