src: use local isolate instead of args.GetIsolate
While stepping though SetupPromises I noticed that the environments Isolate is used but not when creating the string "_setupPromises".
Is there a reason for using args.GetIsolate() instead of using the environments isolate? I see that GetIsolate() is an inline call, but could there be situations where it returns a different Isolate? If not perhaps using the local isolate variable would be a litte clearer.
Checklist
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make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
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Affected core subsystem(s)
src