set some F#-specific parameters that are used in lieu of setting DOTNET_HOST_PATH

[baronfel]

This is a promising approach, though if the props in the compiler change we might be broken.

[baronfel]

This might address @dsyme's concerns here

[baronfel]

This is bad and we need better testing. The results that come out of cracking with just these parameters set are not useful:

FscCommandLineArgs
    -o:obj\Debug\net6.0\blah.dll
    -g
    --debug:portable
    --noframework
    --define:TRACE
    --define:DEBUG
    --define:NET
    --define:NET6_0
    --define:NETCOREAPP
    --define:NET5_0_OR_GREATER
    --define:NET6_0_OR_GREATER
    --define:NETCOREAPP1_0_OR_GREATER
    --define:NETCOREAPP1_1_OR_GREATER
    --define:NETCOREAPP2_0_OR_GREATER
    --define:NETCOREAPP2_1_OR_GREATER
    --define:NETCOREAPP2_2_OR_GREATER
    --define:NETCOREAPP3_0_OR_GREATER
    --define:NETCOREAPP3_1_OR_GREATER
    --optimize-
    --tailcalls-
    -r:C:\Users\chethusk\.nuget\packages\fsharp.core\6.0.1\lib\netstandard2.1\FSharp.Core.dll
    --target:exe
    --warn:3
    --warnon:3368,3369
    --warnaserror:3239
    --fullpaths
    --flaterrors
    --highentropyva+
    --targetprofile:netcore
    --nocopyfsharpcore
    --deterministic+
    --simpleresolution
    obj\Debug\net6.0\blah.AssemblyInfo.fs
    Program.fs

Note the absence of any of the SDK refs

[baronfel]

@dsyme we might need some real deep thinking about how/why the FCS APIs exactly work inconsistently when this is set.