Add unsafe_destructor_blind_to_params attr to Vec and TypedArena.

Necessary for `rustc` to bootstrap.

Note that this is not sufficient for `make check`.

Author: pnkfelix

src/libarena/lib.rs

@@ -38,8 +38,14 @@
 #![feature(ptr_as_ref)]
 #![feature(raw)]
 #![feature(staged_api)]
+#![feature(unsafe_destructor_blind_to_params)]
 #![cfg_attr(test, feature(test))]
 
+// SNAP ba0e1cd
+#![allow(unused_features)]
+// SNAP ba0e1cd
+#![allow(unused_attributes)]
+
 extern crate alloc;
 
 use std::cell::{Cell, RefCell};
@@ -512,6 +518,7 @@ impl<T> TypedArena<T> {
 }
 
 impl<T> Drop for TypedArena<T> {
+    #[unsafe_destructor_blind_to_params]
     fn drop(&mut self) {
         unsafe {
             // Determine how much was filled.

src/libcollections/lib.rs

@@ -30,6 +30,11 @@
 #![allow(trivial_casts)]
 #![cfg_attr(test, allow(deprecated))] // rand
 
+// SNAP ba0e1cd
+#![allow(unused_features)]
+// SNAP ba0e1cd
+#![allow(unused_attributes)]
+
 #![feature(alloc)]
 #![feature(box_patterns)]
 #![feature(box_raw)]
@@ -59,6 +64,7 @@
 #![feature(unboxed_closures)]
 #![feature(unicode)]
 #![feature(unique)]
+#![feature(unsafe_destructor_blind_to_params)]
 #![feature(unsafe_no_drop_flag, filling_drop)]
 #![feature(utf8_error)]
 #![cfg_attr(test, feature(rand, test))]

src/libcollections/vec.rs

@@ -1651,6 +1651,7 @@ impl<T: Ord> Ord for Vec<T> {
 
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T> Drop for Vec<T> {
+    #[unsafe_destructor_blind_to_params]
     fn drop(&mut self) {
         // This is (and should always remain) a no-op if the fields are
         // zeroed (when moving out, because of #[unsafe_no_drop_flag]).