Update .NET

[vzarytovskii]

Update to 9.0.200 and sync between devcontainer, globaljson and fslib package version used by JB folks

[github-actions]

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[vzarytovskii]

@Martin521 this should fix the devcontainer issue

[Martin521]

@Martin521 this should fix the devcontainer issue

Thanks!

[Martin521]

With these changes, script build and test works fine for me locally.
If, however, I use dotnet build FCS.sln, I get 5 nullness related failures in ComponentTests.
If I set FSHARPCORE_USE_PACKAGE to false, I get a build error:
src/Compiler/TypedTree/TypeProviders.fs(1161,147): error FS0039: The value or constructor 'withNull' is not defined. Maybe you want one of the following: withEnd isNull

[vzarytovskii]

With these changes, script build and test works fine for me locally.

If, however, I use dotnet build FCS.sln, I get 5 nullness related failures in ComponentTests.

If I set FSHARPCORE_USE_PACKAGE to false, I get a build error:

src/Compiler/TypedTree/TypeProviders.fs(1161,147): error FS0039: The value or constructor 'withNull' is not defined. Maybe you want one of the following: withEnd isNull

Not sure what's wrong there. Someone must've forgotten to change something when changed some nullness related code.

[vzarytovskii]

With these changes, script build and test works fine for me locally.

If, however, I use dotnet build FCS.sln, I get 5 nullness related failures in ComponentTests.

If I set FSHARPCORE_USE_PACKAGE to false, I get a build error:

src/Compiler/TypedTree/TypeProviders.fs(1161,147): error FS0039: The value or constructor 'withNull' is not defined. Maybe you want one of the following: withEnd isNull

Just to note: build scripts is the only supported and tested way of building compiler, plain builds may be overlooked since it was pretty much only me who was using those.

[Martin521]

@T-Gro Will plain builds still be supported?