Don't allow impls to force public types

This code in resolve accidentally forced all types with an impl to become
public. This fixes it by default inheriting the privacy of what was previously
there and then becoming `true` if nothing else exits.

Closes #10545

2 files changed, 2 insertions, 1 deletions

diff --git a/src/libstd/hash.rs b/src/libstd/hash.rs
index a135d66141a..4782bb5dd13 100644
--- a/src/libstd/hash.rs
+++ b/src/libstd/hash.rs
@@ -303,6 +303,7 @@ impl Streaming for SipState {
 mod tests {
     use super::*;
     use prelude::*;
+    use super::SipState;
 
     // Hash just the bytes of the slice, without length prefix
     struct Bytes<'a>(&'a [u8]);
diff --git a/src/libstd/rt/mpmc_bounded_queue.rs b/src/libstd/rt/mpmc_bounded_queue.rs
index 1e04e5eb78d..25a3ba8ab48 100644
--- a/src/libstd/rt/mpmc_bounded_queue.rs
+++ b/src/libstd/rt/mpmc_bounded_queue.rs
@@ -51,7 +51,7 @@ struct State<T> {
     pad3: [u8, ..64],
 }
 
-struct Queue<T> {
+pub struct Queue<T> {
     priv state: UnsafeArc<State<T>>,
 }