BREAKING CHANGE: dart:io StringEncoder / StringDecoder removed

[Florian Loitsch]

I forgot to add this to the Encoding change.

What changed?

The `StringEncoder` and `StringDecoder` classes have been removed from dart:io.

Who is affected?

Only dart:io users (or transitive users of it) are affected by this change.

Only users of StringEncoder / StringDecoder. (If your code doesn't contain any `new StringEncoder`, or `new StringDecoder` you are probably safe).

How do I update my code?

Import 'dart:convert' and use the decoders of the Encodings.

Examples:

new StringDecoder() -> UTF8.decoder

new StringDecoder(encoding) -> encoding.decoder

new StringEncoder() -> UTF8.encoder

Why did this change happen?

This happened as part of the Encoding change (announced yesterday).

When will the change take effect?

The change was committed yesterday with r26632.

--
Give a man a fire and he's warm for the whole day,
but set fire to him and he's warm for the rest of his life. - Terry Pratchett