url: check MaybeLocal return value
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
commit message follows commit guidelines
Affected core subsystem(s)
url
Description of change
Always check the return value for V8 APIs that return a v8::MaybeLocal
.
Fixes: 4b312387 "url: adding WHATWG URL support"
CI: https://ci.nodejs.org/job/node-test-commit/6785/
NOTE: Not a fan of simply ignoring whether the callback threw or not, but if we're going to use the MaybeLocal
API then we shouldn't be using it in a way that creates a compiler warning. So I'm up for suggestions on how we should check it.