Further fixes for including package information in docs

pkg/docgen/lib/dottedLibraryName.dart

+library library.name.wiith.dots.init;
+
+/// This library is purely for testing purposes, to ensure
+/// that we have a library that has dots in its name and
+/// that it works properly
+///
+/// In addition, it's nice to have something which has paragraph
+/// breaks inside a triple-slash doc comment.
+///
+/// Like this.
+
+/// This is a top level field holding the number three;
+int topLevelInt = 3;
+
+/// This is a class with various ways of getting the number three.
+///
+/// It also has a comment with paragraph breaks.
+class SomeClass {
+  /// This is a method that returns the number three. See
+  /// [three]
+  someMethod() => 3;
+
+  /// This is a symbolic representation of the number three.
+  int three = 3;
+}
+
+/// This is another class.
+class AnotherClass {
+  /// This method returns [List<int>] containing the number
+  /// three three times. Compare with [SomeClass.someMethod].
+  List<int> anotherMethod() {
+    return const [3, 3, 3];
+  }
+}