anchor.diff:      <RestoreAdditionalProjectSources Condition = "" '$(RestoreAdditionalProjectSources)' != ''"">$(RestoreAdditionalProjectSources);$(RestoreFromArtifactsPath)</RestoreAdditionalProjectSources>
     </PropertyGroup>
   
  -  <!-- Utility sources -->
  +  <!-- FSharp.Core reference -->
  +  <ItemGroup>
  +    <Reference Include='FSharp.Core'>
  +        <HintPath>$(FSHARPCORELOCATION)</HintPath>
  +    </Reference>
  +  </ItemGroup>
  +
     <ItemGroup>$(UTILITYSOURCEITEMS)
     </ItemGroup>
   
  
positive.code:     let referenceItems =  if String.IsNullOrEmpty(copyFiles) then [] else [copyFiles]
      let framework = "netcoreapp2.0"
  
      let executeSingleTestBuildAndRun outputType compilerType targetFramework optimize =
          let mutable result = false
          let directory = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName() )
  
negative.code:     let debug = if pc.Optimize then "True" else "False"
      let generateProjBody =
          let template = @"<Project Sdk='Microsoft.NET.Sdk'>
  
    <PropertyGroup>
      <OutputType>$(OUTPUTTYPE)</OutputType>
      <TargetFramework>$(TARGETFRAMEWORK)</TargetFramework>
      <DisableImplicitFSharpCoreReference>true</DisableImplicitFSharpCoreReference>
      <IsPackable>false</IsPackable>
      <DebugSymbols>$(DEBUG)</DebugSymbols>
      <DebugType>portable</DebugType>
  