This class was only added to do a reverse lookup of
RequestMethods enum to get its name (i.e. "GET") for Dart.
Since Dart is no longer supported by Http, method names
can just be retrieved with TypeScript's support for
enum name lookup,
i.e. RequestMethods[RequestMethods.GET] === 'GET',
making the RequestMethodsMap utility obsolete.
Closes#2904
BREAKING CHANGE:
This change moves the http module into angular2/, so its import
path is now angular2/http instead of http/http.
Many other modules have also been moved around inside of angular2,
but the public API paths have not changed as of this commit.
