auto merge of #13237 : alexcrichton/rust/private-tuple-structs, r=brson

This is the final commit need to implement [RFC #4](https://github.com/rust-lang/rfcs/blob/master/active/0004-private-fields.md), it makes all tuple struct fields private by default, overridable with the `pub` keyword.

I'll note one divergence from the original RFC which is outlined in the first commit.

2 files changed, 19 insertions, 11 deletions

diff --git a/src/libstd/rt/task.rs b/src/libstd/rt/task.rs
index 0f90135512c..fc266df11e4 100644
--- a/src/libstd/rt/task.rs
+++ b/src/libstd/rt/task.rs
@@ -58,7 +58,7 @@ pub struct Task {
 }
 
 pub struct GarbageCollector;
-pub struct LocalStorage(Option<local_data::Map>);
+pub struct LocalStorage(pub Option<local_data::Map>);
 
 /// A handle to a blocked task. Usually this means having the ~Task pointer by
 /// ownership, but if the task is killable, a killer can steal it at any time.
diff --git a/src/libstd/unstable/simd.rs b/src/libstd/unstable/simd.rs
index 01200833b19..a7a314d35e7 100644
--- a/src/libstd/unstable/simd.rs
+++ b/src/libstd/unstable/simd.rs
@@ -14,40 +14,48 @@
 
 #[experimental]
 #[simd]
-pub struct i8x16(i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8);
+pub struct i8x16(pub i8, pub i8, pub i8, pub i8,
+                 pub i8, pub i8, pub i8, pub i8,
+                 pub i8, pub i8, pub i8, pub i8,
+                 pub i8, pub i8, pub i8, pub i8);
 
 #[experimental]
 #[simd]
-pub struct i16x8(i16, i16, i16, i16, i16, i16, i16, i16);
+pub struct i16x8(pub i16, pub i16, pub i16, pub i16,
+                 pub i16, pub i16, pub i16, pub i16);
 
 #[experimental]
 #[simd]
-pub struct i32x4(i32, i32, i32, i32);
+pub struct i32x4(pub i32, pub i32, pub i32, pub i32);
 
 #[experimental]
 #[simd]
-pub struct i64x2(i64, i64);
+pub struct i64x2(pub i64, pub i64);
 
 #[experimental]
 #[simd]
-pub struct u8x16(u8, u8, u8, u8, u8, u8, u8, u8, u8, u8, u8, u8, u8, u8, u8, u8);
+pub struct u8x16(pub u8, pub u8, pub u8, pub u8,
+                 pub u8, pub u8, pub u8, pub u8,
+                 pub u8, pub u8, pub u8, pub u8,
+                 pub u8, pub u8, pub u8, pub u8);
 
 #[experimental]
 #[simd]
-pub struct u16x8(u16, u16, u16, u16, u16, u16, u16, u16);
+pub struct u16x8(pub u16, pub u16, pub u16, pub u16,
+                 pub u16, pub u16, pub u16, pub u16);
 
 #[experimental]
 #[simd]
-pub struct u32x4(u32, u32, u32, u32);
+pub struct u32x4(pub u32, pub u32, pub u32, pub u32);
 
 #[experimental]
 #[simd]
-pub struct u64x2(u64, u64);
+pub struct u64x2(pub u64, pub u64);
 
 #[experimental]
 #[simd]
-pub struct f32x4(f32, f32, f32, f32);
+pub struct f32x4(pub f32, pub f32, pub f32, pub f32);
 
 #[experimental]
 #[simd]
-pub struct f64x2(f64, f64);
+pub struct f64x2(pub f64, pub f64);