Add tests for "jump to definition" feature extension

Author: GuillaumeGomez

src/test/rustdoc-gui/source-anchor-scroll.goml

@@ -7,11 +7,11 @@ size: (600, 800)
 // We check that the scroll is at the top first.
 assert-property: ("html", {"scrollTop": "0"})
 
-click: '//a[text() = "barbar"]'
+click: '//a[text() = "barbar" and @href="../../src/link_to_definition/lib.rs.html#4-6"]'
 assert-property: ("html", {"scrollTop": "125"})
-click: '//a[text() = "bar"]'
+click: '//a[text() = "bar" and @href="../../src/link_to_definition/lib.rs.html#27-35"]'
 assert-property: ("html", {"scrollTop": "166"})
-click: '//a[text() = "sub_fn"]'
+click: '//a[text() = "sub_fn" and @href="../../src/link_to_definition/lib.rs.html#1-3"]'
 assert-property: ("html", {"scrollTop": "53"})
 
 // We now check that clicking on lines doesn't change the scroll

src/test/rustdoc/check-source-code-urls-to-def.rs

@@ -28,11 +28,11 @@ impl Foo {
 
 fn babar() {}
 
-// @has - '//a/@href' '/struct.String.html'
+// @has - '//a/@href' '/string.rs.html'
 // @has - '//a/@href' '/primitive.u32.html'
 // @has - '//a/@href' '/primitive.str.html'
 // @count - '//a[@href="../../src/foo/check-source-code-urls-to-def.rs.html#23"]' 5
-// @has - '//a[@href="../../source_code/struct.SourceCode.html"]' 'source_code::SourceCode'
+// @has - '//a[@href="../../src/source_code/source_code.rs.html#1"]' 'source_code::SourceCode'
 pub fn foo(a: u32, b: &str, c: String, d: Foo, e: bar::Bar, f: source_code::SourceCode) {
     let x = 12;
     let y: Foo = Foo;

src/test/rustdoc/jump-to-def-doc-links.rs

@@ -0,0 +1,51 @@
+// compile-flags: -Zunstable-options --generate-link-to-definition
+
+#![crate_name = "foo"]
+
+// @has 'src/foo/jump-to-def-doc-links.rs.html'
+
+// @has - '//a[@href="../../foo/struct.Bar.html"]' 'Bar'
+// @has - '//a[@href="../../foo/struct.Foo.html"]' 'Foo'
+pub struct Bar; pub struct Foo;
+
+// @has - '//a[@href="../../foo/enum.Enum.html"]' 'Enum'
+pub enum Enum {
+    Variant1(String),
+    Variant2(u8),
+}
+
+// @has - '//a[@href="../../foo/struct.Struct.html"]' 'Struct'
+pub struct Struct {
+    pub a: u8,
+    b: Foo,
+}
+
+impl Struct {
+    pub fn foo() {}
+    pub fn foo2(&self) {}
+    fn bar() {}
+    fn bar(&self) {}
+}
+
+// @has - '//a[@href="../../foo/trait.Trait.html"]' 'Trait'
+pub trait Trait {
+    fn foo();
+}
+
+impl Trait for Struct {
+    fn foo() {}
+}
+
+// @has - '//a[@href="../../foo/union.Union.html"]' 'Union'
+pub union Union {
+    pub a: u16,
+    pub f: u32,
+}
+
+// @has - '//a[@href="../../foo/fn.bar.html"]' 'bar'
+pub fn bar(b: Bar) {
+     let x = Foo;
+}
+
+// @has - '//a[@href="../../foo/bar/index.html"]' 'bar'
+pub mod bar {}