Add rustdoc tests for lazy_type_alias

Author: GuillaumeGomez

tests/rustdoc/alias-reexport.rs

@@ -0,0 +1,18 @@
+// aux-build:alias-reexport.rs
+// aux-build:alias-reexport2.rs
+
+#![crate_name = "foo"]
+#![feature(lazy_type_alias)]
+
+extern crate alias_reexport2;
+
+// @has 'foo/reexport/fn.foo.html'
+// FIXME: should be 'pub fn foo() -> Reexport'
+// @has - '//*[@class="rust item-decl"]' 'pub fn foo() -> u8'
+// @has 'foo/reexport/fn.foo2.html'
+// FIXME: should be 'pub fn foo2() -> Result<Reexport, ()>'
+// @has - '//*[@class="rust item-decl"]' 'pub fn foo2() -> Result<u8, ()>'
+// @has 'foo/reexport/type.Reexported.html'
+// @has - '//*[@class="rust item-decl"]' 'pub type Reexported = u8;'
+#[doc(inline)]
+pub use alias_reexport2 as reexport;

tests/rustdoc/alias-reexport2.rs

@@ -0,0 +1,16 @@
+// gate-test-lazy_type_alias
+// aux-build:alias-reexport.rs
+
+#![crate_name = "foo"]
+#![feature(lazy_type_alias)]
+
+extern crate alias_reexport;
+
+use alias_reexport::Reexported;
+
+// @has 'foo/fn.foo.html'
+// @has - '//*[@class="rust item-decl"]' 'pub fn foo() -> Reexported'
+pub fn foo() -> Reexported { 0 }
+// @has 'foo/fn.foo2.html'
+// @has - '//*[@class="rust item-decl"]' 'pub fn foo2() -> Result<Reexported, ()>'
+pub fn foo2() -> Result<Reexported, ()> { Ok(0) }

tests/rustdoc/auxiliary/alias-reexport.rs

@@ -0,0 +1,3 @@
+#![feature(lazy_type_alias)]
+
+pub type Reexported = u8;

tests/rustdoc/auxiliary/alias-reexport2.rs

@@ -0,0 +1,12 @@
+#![feature(lazy_type_alias)]
+
+extern crate alias_reexport;
+
+pub use alias_reexport::Reexported;
+
+// @has 'foo/fn.foo.html'
+// @has - '//*[@class="docblock item-decl"]' 'pub fn foo() -> Reexported'
+pub fn foo() -> Reexported { 0 }
+// @has 'foo/fn.foo2.html'
+// @has - '//*[@class="docblock item-decl"]' 'pub fn foo2() -> Result<Reexported, ()>'
+pub fn foo2() -> Result<Reexported, ()> { Ok(0) }