Bug 1682632 added test_ext_webidl_runtime_port.js, we have a manually (at the moment) run eslint rule that has picked up the following:

toolkit/components/extensions/test/xpcshell/webidl-api/test_ext_webidl_runtime_port.js
  95:19  error  Use of unknown property Ci.mozIExtensionAPIRequestResult.RESULT_VALUE  mozilla/ci-checks (eslint)

Ci.mozIExtensionAPIRequestResult.RESULT_VALUE was actually meant to be Ci.mozIExtensionAPIRequestResult.RETURN_VALUE (which is the enum actually defined in the idl file as a cenum).

It used to be named RESULT_VALUE in a older version of those patches, I missed to notice it because that part of the test is expected to trigger an error, returning the unknown RESULT_VALUE does still trigger the error but it was meant to trigger the error because the value returned doesn't contain the property expected by a (ExtensionPortDescription webIDL dictionary)[https://searchfox.org/mozilla-central/rev/bea2345ce636dc329ac7133fc0a13c9171777e40/dom/webidl/ExtensionPort.webidl#36-39].

The attached patch fixed the typo, and I have verified locally that the test still pass as expected.

Set release status flags based on info from the regressing bug 1682632

https://hg.mozilla.org/mozilla-central/rev/f3ad535e2c9f