Auto merge of #54660 - kennytm:rollup, r=kennytm

Rollup of 8 pull requests

Successful merges:

 - #54564 (Add 1.29.1 release notes)
 - #54567 (Include path in stamp hash for debuginfo tests)
 - #54577 (rustdoc: give proc-macros their own pages)
 - #54590 (std: Don't let `rust_panic` get inlined)
 - #54598 (Remove useless lifetimes from `Pin` `impl`s.)
 - #54604 (Added help message for `self_in_typedefs` feature gate)
 - #54635 (Improve docs for std::io::Seek)
 - #54645 (Compute Android gdb version in compiletest)

src/test/rustdoc/inline_cross/auxiliary/proc_macro.rs

@@ -0,0 +1,37 @@
+// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// no-prefer-dynamic
+
+#![crate_type="proc-macro"]
+#![crate_name="some_macros"]
+
+extern crate proc_macro;
+
+use proc_macro::TokenStream;
+
+/// a proc-macro that swallows its input and does nothing.
+#[proc_macro]
+pub fn some_proc_macro(_input: TokenStream) -> TokenStream {
+    TokenStream::new()
+}
+
+/// a proc-macro attribute that passes its item through verbatim.
+#[proc_macro_attribute]
+pub fn some_proc_attr(_attr: TokenStream, item: TokenStream) -> TokenStream {
+    item
+}
+
+/// a derive attribute that adds nothing to its input.
+#[proc_macro_derive(SomeDerive)]
+pub fn some_derive(_item: TokenStream) -> TokenStream {
+    TokenStream::new()
+}
+

src/test/rustdoc/inline_cross/proc_macro.rs

@@ -0,0 +1,27 @@
+// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// ignore-stage1
+// aux-build:proc_macro.rs
+// build-aux-docs
+
+// FIXME: if/when proc-macros start exporting their doc attributes across crates, we can turn on
+// cross-crate inlining for them
+
+extern crate some_macros;
+
+// @has proc_macro/index.html
+// @has - '//a/@href' '../some_macros/macro.some_proc_macro.html'
+// @has - '//a/@href' '../some_macros/attr.some_proc_attr.html'
+// @has - '//a/@href' '../some_macros/derive.SomeDerive.html'
+// @!has proc_macro/macro.some_proc_macro.html
+// @!has proc_macro/attr.some_proc_attr.html
+// @!has proc_macro/derive.SomeDerive.html
+pub use some_macros::{some_proc_macro, some_proc_attr, SomeDerive};

src/test/rustdoc/proc-macro.rs

@@ -0,0 +1,62 @@
+// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// ignore-stage1
+
+#![crate_type="proc-macro"]
+#![crate_name="some_macros"]
+
+extern crate proc_macro;
+
+use proc_macro::TokenStream;
+
+// @has some_macros/index.html
+// @has - '//h2' 'Macros'
+// @has - '//h2' 'Attribute Macros'
+// @has - '//h2' 'Derive Macros'
+// @!has - '//h2' 'Functions'
+
+// @has some_macros/all.html
+// @has - '//a[@href="macro.some_proc_macro.html"]' 'some_proc_macro'
+// @has - '//a[@href="attr.some_proc_attr.html"]' 'some_proc_attr'
+// @has - '//a[@href="derive.SomeDerive.html"]' 'SomeDerive'
+// @!has - '//a/@href' 'fn.some_proc_macro.html'
+// @!has - '//a/@href' 'fn.some_proc_attr.html'
+// @!has - '//a/@href' 'fn.some_derive.html'
+
+// @has some_macros/index.html '//a/@href' 'macro.some_proc_macro.html'
+// @!has - '//a/@href' 'fn.some_proc_macro.html'
+// @has some_macros/macro.some_proc_macro.html
+// @!has some_macros/fn.some_proc_macro.html
+/// a proc-macro that swallows its input and does nothing.
+#[proc_macro]
+pub fn some_proc_macro(_input: TokenStream) -> TokenStream {
+    TokenStream::new()
+}
+
+// @has some_macros/index.html '//a/@href' 'attr.some_proc_attr.html'
+// @!has - '//a/@href' 'fn.some_proc_attr.html'
+// @has some_macros/attr.some_proc_attr.html
+// @!has some_macros/fn.some_proc_attr.html
+/// a proc-macro attribute that passes its item through verbatim.
+#[proc_macro_attribute]
+pub fn some_proc_attr(_attr: TokenStream, item: TokenStream) -> TokenStream {
+    item
+}
+
+// @has some_macros/index.html '//a/@href' 'derive.SomeDerive.html'
+// @!has - '//a/@href' 'fn.some_derive.html'
+// @has some_macros/derive.SomeDerive.html
+// @!has some_macros/fn.some_derive.html
+/// a derive attribute that adds nothing to its input.
+#[proc_macro_derive(SomeDerive)]
+pub fn some_derive(_item: TokenStream) -> TokenStream {
+    TokenStream::new()
+}

src/test/ui/feature-gates/feature-gate-self_in_typedefs.stderr

@@ -3,6 +3,8 @@ error[E0411]: cannot find type `Self` in this scope
    |
 LL |     Cons(T, &'a Self)
    |                 ^^^^ `Self` is only available in traits and impls
+   |
+   = help: add #![feature(self_in_typedefs)] to the crate attributes to enable
 
 error: aborting due to previous error
 

src/test/ui/inference/inference_unstable.stderr

@@ -8,5 +8,5 @@ LL |     assert_eq!('x'.ipu_flatten(), 1);
    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
    = help: call with fully qualified syntax `inference_unstable_itertools::IpuItertools::ipu_flatten(...)` to keep using the current method
-   = note: add #![feature(ipu_flatten)] to the crate attributes to enable `inference_unstable_iterator::IpuIterator::ipu_flatten`
+   = help: add #![feature(ipu_flatten)] to the crate attributes to enable `inference_unstable_iterator::IpuIterator::ipu_flatten`