ibm866 encoding label appears incorrect in tests #5663
Description
workerd/src/workerd/api/tests/encoding-test.js
Lines 404 to 407 in b026653
new TextDecoder('866').encoding should instead be ibm866, not ibm-866
See https://encoding.spec.whatwg.org/#names-and-labels (and https://encoding.spec.whatwg.org/encodings.json)
Likewise, new TextDecoder('shift-jis').encoding should be shift_jis, not shift-jis:
workerd/src/workerd/api/tests/encoding-test.js
Lines 592 to 599 in b026653