Add test for dot separator

src/test/rustdoc/source-version-separator.rs

@@ -0,0 +1,31 @@
+#![stable(feature = "bar", since = "1.0")]
+#![crate_name = "foo"]
+
+#![feature(staged_api)]
+
+// @has foo/trait.Bar.html
+// @has - '//div[@class="main-heading"]/*[@class="out-of-band"]' '1.0· source · '
+#[stable(feature = "bar", since = "1.0")]
+pub trait Bar {
+    // @has - '//div[@id="tymethod.foo"]/*[@class="rightside"]' '3.0 · source'
+    #[stable(feature = "foobar", since = "3.0")]
+    fn foo();
+}
+
+// @has - '//div[@id="implementors-list"]//*[@class="rightside"]' '4.0 · source'
+
+// @has foo/struct.Foo.html
+// @has - '//div[@class="main-heading"]/*[@class="out-of-band"]' '1.0· source · '
+#[stable(feature = "baz", since = "1.0")]
+pub struct Foo;
+
+impl Foo {
+    // @has - '//div[@id="method.foofoo"]/*[@class="rightside"]' '3.0 · source'
+    #[stable(feature = "foobar", since = "3.0")]
+    pub fn foofoo() {}
+}
+
+#[stable(feature = "yolo", since = "4.0")]
+impl Bar for Foo {
+    fn foo() {}
+}