Improved "unmanaged" handling for delay loading

[peter-sabath]

Checklist

• npm install && npm test passes
• commit message follows commit guidelines

Description of change

Used scoped disabling of managed code handling to ensure no other files get affected.

[joaocgreis]

The change looks reasonable to me, from what I understand of the docs it should have the same effect as what is there now.

@peter-sabath I expected the unmanaged pragma to be effective only within this compilation unit. How does this affect other files? Is it a stateful thing in the compiler or does it actually become a runtime setting?

@ipetrovic11 please let me know if this causes any issue to you.

[peter-sabath]

@joaocgreis You most likely are right, that only the current compilation unit is affected, but as good practice I use those #pragmas in a scoped way similar to #if #endif markers. This would even work fine if MS decides to compine compilation units like they already do for C# for faster compile times.

[joaocgreis]

CI: https://ci.nodejs.org/view/All/job/nodegyp-test-pull-request/154/ ✔️

[ipetrovic11]

@joaocgreis just tested, works fine for me with this improvement as well.
I am not proficient enough to comment if this is better practice or not.

@peter-sabath if you believe they will do something like that, I am pretty sure they will be handling solutions like first one, since they would break a lot of projects :)

[peter-sabath]

@ipetrovic11 This was just my way of solving it. We ran into the abort problem from the loader. So we should not argue about good style / bad style, but be happy that this nasty problem is solved. So keep it or leave it, your solution also does what is required.

[joaocgreis]

Landed in af876e1.

Thanks!