Relax --noframework for mscorlib, netstandard and system.runtime (#7612)

* Eliminate Relax requirement to apply --noframework when referencing mscorlib/system.runtime.dll/netstandard.dll

* Relax requirement to pass --noframework with System.Runtime, netstandard and mscorlib.dll

Author: KevinRansom

src/fsharp/CompileOps.fs

@@ -2589,12 +2589,6 @@ type TcConfig private (data: TcConfigBuilder, validate: bool) =
         | Some _ -> dllReference
         | None -> AssemblyReference(range0, getDefaultFSharpCoreReference, None)
 
-    // If either mscorlib.dll/System.Runtime.dll/netstandard.dll or FSharp.Core.dll are explicitly specified then we require the --noframework flag.
-    // The reason is that some non-default frameworks may not have the default dlls. For example, Client profile does
-    // not have System.Web.dll.
-    do if (primaryAssemblyExplicitFilenameOpt.IsSome && data.framework) then
-            error(Error(FSComp.SR.buildExplicitCoreLibRequiresNoFramework("--noframework"), rangeStartup))
-
     // clrRoot: the location of the primary assembly (mscorlib.dll or netstandard.dll or System.Runtime.dll)
     //
     // targetFrameworkVersionValue: Normally just HighestInstalledNetFrameworkVersion()

src/fsharp/DotNetFrameworkDependencies.fs

@@ -182,7 +182,6 @@ module internal FSharp.Compiler.DotNetFrameworkDependencies
     //    (a) included in the environment used for all .fsx files (see service.fs)
     //    (b) included in environment for files 'orphaned' from a project context
     //            -- for orphaned files (files in VS without a project context)
-    //            -- for files given on a command line without --noframework set
     let getDesktopDefaultReferences useFsiAuxLib = [
         yield "mscorlib"
         yield "System"

src/fsharp/FSComp.txt

@@ -1086,7 +1086,6 @@ lexIndentOffForML,"Consider using a file with extension '.ml' or '.mli' instead"
 1219,tcUnionCaseNameConflictsWithGeneratedType,"The union case named '%s' conflicts with the generated type '%s'"
 1220,chkNoReflectedDefinitionOnStructMember,"ReflectedDefinitionAttribute may not be applied to an instance member on a struct type, because the instance member takes an implicit 'this' byref parameter"
 1221,tcDllImportNotAllowed,"DLLImport bindings must be static members in a class or function definitions in a module"
-1222,buildExplicitCoreLibRequiresNoFramework,"When mscorlib.dll is explicitly referenced the %s option must also be passed"
 1223,buildExpectedSigdataFile,"FSharp.Core.sigdata not found alongside FSharp.Core. File expected in %s. Consider upgrading to a more recent version of FSharp.Core, where this file is no longer be required."
 1225,buildExpectedFileAlongSideFSharpCore,"File '%s' not found alongside FSharp.Core. File expected in %s. Consider upgrading to a more recent version of FSharp.Core, where this file is no longer be required."
 1227,buildUnexpectedFileNameCharacter,"Filename '%s' contains invalid character '%s'"