Auto merge of #51805 - pietroalbini:rollup, r=pietroalbini

Rollup of 11 pull requests

Successful merges:

 - #51104 (add `dyn ` to display of dynamic (trait) types)
 - #51153 (Link panic and compile_error docs)
 - #51642 (Fix unknown windows build)
 - #51730 (New safe associated functions for PinMut)
 - #51731 (Fix ICEs when using continue as an array length inside closures (inside loop conditions))
 - #51747 (Add error for using null characters in #[export_name])
 - #51769 (Update broken rustc-guide links)
 - #51786 (Remove unnecessary stat64 pointer casts)
 - #51788 (Fix typo)
 - #51789 (Don't ICE when performing `lower_pattern_unadjusted` on a `TyError`)
 - #51791 (Minify css)

Failed merges:

r? @ghost

Author: bors

src/Cargo.lock

@@ -1220,7 +1220,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "minifier"
-version = "0.0.11"
+version = "0.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "regex 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2426,7 +2426,7 @@ dependencies = [
 name = "rustdoc"
 version = "0.0.0"
 dependencies = [
- "minifier 0.0.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "minifier 0.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "pulldown-cmark 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempfile 3.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -3263,7 +3263,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum mdbook 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "90b5a8d7e341ceee5db3882a06078d42661ddcfa2b3687319cc5da76ec4e782f"
 "checksum memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "796fba70e76612589ed2ce7f45282f5af869e0fdd7cc6199fa1aa1f1d591ba9d"
 "checksum memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0f9dc261e2b62d7a622bf416ea3c5245cdd5d9a7fcc428c0d06804dfce1775b3"
-"checksum minifier 0.0.11 (registry+https://github.com/rust-lang/crates.io-index)" = "26f3e36a4db1981b16567e4abfd6ddc3641bc9b950bdc868701f656bf9b74bdd"
+"checksum minifier 0.0.14 (registry+https://github.com/rust-lang/crates.io-index)" = "78cb57f9a385530d60f2d67f6e108050b478b7a0ffd0bb9c350803e1356535dd"
 "checksum miniz-sys 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "609ce024854aeb19a0ef7567d348aaa5a746b32fb72e336df7fcc16869d7e2b4"
 "checksum miow 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "9224c91f82b3c47cf53dcf78dfaa20d6888fbcc5d272d5f2fcdf8a697f3c987d"
 "checksum nibble_vec 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "c8d77f3db4bce033f4d04db08079b2ef1c3d02b44e86f25d08886fafa7756ffa"

src/libcore/mem.rs

@@ -1119,6 +1119,12 @@ impl<'a, T: ?Sized + Unpin> PinMut<'a, T> {
     pub fn new(reference: &'a mut T) -> PinMut<'a, T> {
         PinMut { inner: reference }
     }
+
+    /// Get a mutable reference to the data inside of this `PinMut`.
+    #[unstable(feature = "pin", issue = "49150")]
+    pub fn get_mut(this: PinMut<'a, T>) -> &'a mut T {
+        this.inner
+    }
 }
 
 
@@ -1150,21 +1156,21 @@ impl<'a, T: ?Sized> PinMut<'a, T> {
     /// the data out of the mutable reference you receive when you call this
     /// function.
     #[unstable(feature = "pin", issue = "49150")]
-    pub unsafe fn get_mut(this: PinMut<'a, T>) -> &'a mut T {
+    pub unsafe fn get_mut_unchecked(this: PinMut<'a, T>) -> &'a mut T {
         this.inner
     }
 
     /// Construct a new pin by mapping the interior value.
     ///
-    /// For example, if you  wanted to get a `PinMut` of a field of something, you
-    /// could use this to get access to that field in one line of code.
+    /// For example, if you  wanted to get a `PinMut` of a field of something,
+    /// you could use this to get access to that field in one line of code.
     ///
     /// This function is unsafe. You must guarantee that the data you return
     /// will not move so long as the argument value does not move (for example,
     /// because it is one of the fields of that value), and also that you do
     /// not move out of the argument you receive to the interior function.
     #[unstable(feature = "pin", issue = "49150")]
-    pub unsafe fn map<U, F>(this: PinMut<'a, T>, f: F) -> PinMut<'a, U> where
+    pub unsafe fn map_unchecked<U, F>(this: PinMut<'a, T>, f: F) -> PinMut<'a, U> where
         F: FnOnce(&mut T) -> &mut U
     {
         PinMut { inner: f(this.inner) }

src/libcore/option.rs

@@ -275,7 +275,7 @@ impl<T> Option<T> {
     #[unstable(feature = "pin", issue = "49150")]
     pub fn as_pin_mut<'a>(self: PinMut<'a, Self>) -> Option<PinMut<'a, T>> {
         unsafe {
-            PinMut::get_mut(self).as_mut().map(|x| PinMut::new_unchecked(x))
+            PinMut::get_mut_unchecked(self).as_mut().map(|x| PinMut::new_unchecked(x))
         }
     }
 

src/librustc/hir/lowering.rs

@@ -3536,12 +3536,22 @@ impl<'a> LoweringContext<'a> {
                         this.expr_block(block, ThinVec::new())
                     })
                 })
-            },
+            }
             ExprKind::Closure(
-                capture_clause, asyncness, movability, ref decl, ref body, fn_decl_span) =>
-            {
-                self.with_new_scopes(|this| {
-                    if let IsAsync::Async(async_closure_node_id) = asyncness {
+                capture_clause, asyncness, movability, ref decl, ref body, fn_decl_span
+            ) => {
+                if let IsAsync::Async(async_closure_node_id) = asyncness {
+                    let outer_decl = FnDecl {
+                        inputs: decl.inputs.clone(),
+                        output: FunctionRetTy::Default(fn_decl_span),
+                        variadic: false,
+                    };
+                    // We need to lower the declaration outside the new scope, because we
+                    // have to conserve the state of being inside a loop condition for the
+                    // closure argument types.
+                    let fn_decl = self.lower_fn_decl(&outer_decl, None, false, false);
+
+                    self.with_new_scopes(|this| {
                         // FIXME(cramertj) allow `async` non-`move` closures with
                         if capture_clause == CaptureBy::Ref &&
                             !decl.inputs.is_empty()
@@ -3561,11 +3571,6 @@ impl<'a> LoweringContext<'a> {
 
                         // Transform `async |x: u8| -> X { ... }` into
                         // `|x: u8| future_from_generator(|| -> X { ... })`
-                        let outer_decl = FnDecl {
-                            inputs: decl.inputs.clone(),
-                            output: FunctionRetTy::Default(fn_decl_span),
-                            variadic: false,
-                        };
                         let body_id = this.lower_body(Some(&outer_decl), |this| {
                             let async_ret_ty = if let FunctionRetTy::Ty(ty) = &decl.output {
                                 Some(&**ty)
@@ -3579,12 +3584,17 @@ impl<'a> LoweringContext<'a> {
                         });
                         hir::ExprClosure(
                             this.lower_capture_clause(capture_clause),
-                            this.lower_fn_decl(&outer_decl, None, false, false),
+                            fn_decl,
                             body_id,
                             fn_decl_span,
                             None,
                         )
-                    } else {
+                    })
+                } else {
+                    // Lower outside new scope to preserve `is_in_loop_condition`.
+                    let fn_decl = self.lower_fn_decl(decl, None, false, false);
+
+                    self.with_new_scopes(|this| {
                         let mut is_generator = false;
                         let body_id = this.lower_body(Some(decl), |this| {
                             let e = this.lower_expr(body);
@@ -3618,13 +3628,13 @@ impl<'a> LoweringContext<'a> {
                         };
                         hir::ExprClosure(
                             this.lower_capture_clause(capture_clause),
-                            this.lower_fn_decl(decl, None, false, false),
+                            fn_decl,
                             body_id,
                             fn_decl_span,
                             generator_option,
                         )
-                    }
-                })
+                    })
+                }
             }
             ExprKind::Block(ref blk, opt_label) => {
                 hir::ExprBlock(self.lower_block(blk,

src/librustc/infer/canonical.rs

@@ -29,7 +29,7 @@
 //! For a more detailed look at what is happening here, check
 //! out the [chapter in the rustc guide][c].
 //!
-//! [c]: https://rust-lang-nursery.github.io/rustc-guide/traits-canonicalization.html
+//! [c]: https://rust-lang-nursery.github.io/rustc-guide/traits/canonicalization.html
 
 use infer::{InferCtxt, InferOk, InferResult, RegionVariableOrigin, TypeVariableOrigin};
 use rustc_data_structures::indexed_vec::Idx;
@@ -274,7 +274,7 @@ impl<'cx, 'gcx, 'tcx> InferCtxt<'cx, 'gcx, 'tcx> {
     /// To get a good understanding of what is happening here, check
     /// out the [chapter in the rustc guide][c].
     ///
-    /// [c]: https://rust-lang-nursery.github.io/rustc-guide/traits-canonicalization.html#processing-the-canonicalized-query-result
+    /// [c]: https://rust-lang-nursery.github.io/rustc-guide/traits/canonicalization.html#processing-the-canonicalized-query-result
     pub fn instantiate_query_result<R>(
         &self,
         cause: &ObligationCause<'tcx>,
@@ -458,7 +458,7 @@ impl<'cx, 'gcx, 'tcx> InferCtxt<'cx, 'gcx, 'tcx> {
     /// To get a good understanding of what is happening here, check
     /// out the [chapter in the rustc guide][c].
     ///
-    /// [c]: https://rust-lang-nursery.github.io/rustc-guide/traits-canonicalization.html#canonicalizing-the-query
+    /// [c]: https://rust-lang-nursery.github.io/rustc-guide/traits/canonicalization.html#canonicalizing-the-query
     pub fn canonicalize_query<V>(&self, value: &V) -> (V::Canonicalized, CanonicalVarValues<'tcx>)
     where
         V: Canonicalize<'gcx, 'tcx>,
@@ -497,7 +497,7 @@ impl<'cx, 'gcx, 'tcx> InferCtxt<'cx, 'gcx, 'tcx> {
     /// To get a good understanding of what is happening here, check
     /// out the [chapter in the rustc guide][c].
     ///
-    /// [c]: https://rust-lang-nursery.github.io/rustc-guide/traits-canonicalization.html#canonicalizing-the-query-result
+    /// [c]: https://rust-lang-nursery.github.io/rustc-guide/traits/canonicalization.html#canonicalizing-the-query-result
     pub fn canonicalize_response<V>(
         &self,
         value: &V,

src/librustc/infer/higher_ranked/mod.rs

@@ -583,7 +583,7 @@ impl<'a, 'gcx, 'tcx> InferCtxt<'a, 'gcx, 'tcx> {
     /// For more information about how skolemization for HRTBs works, see
     /// the [rustc guide].
     ///
-    /// [rustc guide]: https://rust-lang-nursery.github.io/rustc-guide/trait-hrtb.html
+    /// [rustc guide]: https://rust-lang-nursery.github.io/rustc-guide/traits/hrtb.html
     pub fn skolemize_late_bound_regions<T>(&self,
                                            binder: &ty::Binder<T>)
                                            -> (T, SkolemizationMap<'tcx>)

src/librustc/infer/lexical_region_resolve/README.md

@@ -3,7 +3,7 @@
 > WARNING: This README is obsolete and will be removed soon! For
 > more info on how the current borrowck works, see the [rustc guide].
 
-[rustc guide]: https://rust-lang-nursery.github.io/rustc-guide/mir-borrowck.html
+[rustc guide]: https://rust-lang-nursery.github.io/rustc-guide/mir/borrowck.html
 
 ## Terminology
 

src/librustc/infer/region_constraints/README.md

@@ -3,7 +3,7 @@
 > WARNING: This README is obsolete and will be removed soon! For
 > more info on how the current borrowck works, see the [rustc guide].
 
-[rustc guide]: https://rust-lang-nursery.github.io/rustc-guide/mir-borrowck.html
+[rustc guide]: https://rust-lang-nursery.github.io/rustc-guide/mir/borrowck.html
 
 ## Terminology
 

src/librustc/middle/region.rs

@@ -14,7 +14,7 @@
 //! For more information about how MIR-based region-checking works,
 //! see the [rustc guide].
 //!
-//! [rustc guide]: https://rust-lang-nursery.github.io/rustc-guide/mir-borrowck.html
+//! [rustc guide]: https://rust-lang-nursery.github.io/rustc-guide/mir/borrowck.html
 
 use ich::{StableHashingContext, NodeIdHashingMode};
 use util::nodemap::{FxHashMap, FxHashSet};

src/librustc/mir/mod.rs

@@ -10,7 +10,7 @@
 
 //! MIR datatypes and passes. See the [rustc guide] for more info.
 //!
-//! [rustc guide]: https://rust-lang-nursery.github.io/rustc-guide/mir.html
+//! [rustc guide]: https://rust-lang-nursery.github.io/rustc-guide/mir/index.html
 
 use graphviz::IntoCow;
 use hir::def::CtorKind;