Auto merge of #77253 - jyn514:crate-link, r=Manishearth

Resolve `crate` in intra-doc links properly across crates

Closes https://github.com/rust-lang/rust/issues/77193; see https://github.com/rust-lang/rust/issues/77193#issuecomment-699065946 for an explanation of what's going on here.
~~This also fixes the BTreeMap docs that have been broken for a while; see the description on the second commit for why and how.~~ Nope, see the second commit for why the link had to be changed.

r? `@Manishearth`
cc `@dylni`

`@dylni` note that this doesn't solve your original problem - now _both_ `with_code` and `crate::with_code` will be broken links. However this will fix a lot of other broken links (in particular I think https://docs.rs/sqlx/0.4.0-beta.1/sqlx/query/struct.Query.html is because of this bug). I'll open another issue for resolving additional docs in the new scope.

2 files changed, 11 insertions, 0 deletions

diff --git a/src/test/rustdoc/auxiliary/intra-link-cross-crate-crate.rs b/src/test/rustdoc/auxiliary/intra-link-cross-crate-crate.rs
new file mode 100644
index 00000000000..a37848e23d9
--- /dev/null
+++ b/src/test/rustdoc/auxiliary/intra-link-cross-crate-crate.rs
@@ -0,0 +1,5 @@
+#![crate_name = "inner"]
+
+/// Links to [crate::g]
+pub fn f() {}
+pub fn g() {}
diff --git a/src/test/rustdoc/intra-link-cross-crate-crate.rs b/src/test/rustdoc/intra-link-cross-crate-crate.rs
new file mode 100644
index 00000000000..edf544708b6
--- /dev/null
+++ b/src/test/rustdoc/intra-link-cross-crate-crate.rs
@@ -0,0 +1,6 @@
+// aux-build:intra-link-cross-crate-crate.rs
+// build-aux-docs
+#![crate_name = "outer"]
+extern crate inner;
+// @has outer/fn.f.html '//a[@href="../inner/fn.g.html"]' "crate::g"
+pub use inner::f;