Possible fix for script processing (#6301)

* Possible fix for script processing

* Update FSharpProjectOptionsManager.fs

* add test files and improve fix

Author: dsyme

tests/projects/vs2019slow/vs2019slow.sln

@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.28606.126
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "vs2019slow", "vs2019slow\vs2019slow.fsproj", "{F7897B1F-2B0E-4F31-B71E-CB80F16354FF}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{F7897B1F-2B0E-4F31-B71E-CB80F16354FF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F7897B1F-2B0E-4F31-B71E-CB80F16354FF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F7897B1F-2B0E-4F31-B71E-CB80F16354FF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F7897B1F-2B0E-4F31-B71E-CB80F16354FF}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {9AD6A9F5-C754-443F-8C47-5DA32634D93A}
+	EndGlobalSection
+EndGlobal

tests/projects/vs2019slow/vs2019slow/App.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+    </startup>
+</configuration>

tests/projects/vs2019slow/vs2019slow/AssemblyInfo.fs

@@ -0,0 +1,41 @@
+namespace vs2019slow.AssemblyInfo
+
+open System.Reflection
+open System.Runtime.CompilerServices
+open System.Runtime.InteropServices
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[<assembly: AssemblyTitle("vs2019slow")>]
+[<assembly: AssemblyDescription("")>]
+[<assembly: AssemblyConfiguration("")>]
+[<assembly: AssemblyCompany("")>]
+[<assembly: AssemblyProduct("vs2019slow")>]
+[<assembly: AssemblyCopyright("Copyright ©  2019")>]
+[<assembly: AssemblyTrademark("")>]
+[<assembly: AssemblyCulture("")>]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[<assembly: ComVisible(false)>]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[<assembly: Guid("f7897b1f-2b0e-4f31-b71e-cb80f16354ff")>]
+
+// Version information for an assembly consists of the following four values:
+//
+//       Major Version
+//       Minor Version
+//       Build Number
+//       Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers
+// by using the '*' as shown below:
+// [<assembly: AssemblyVersion("1.0.*")>]
+[<assembly: AssemblyVersion("1.0.0.0")>]
+[<assembly: AssemblyFileVersion("1.0.0.0")>]
+
+do
+    ()

tests/projects/vs2019slow/vs2019slow/Program.fs

@@ -0,0 +1,7 @@
+// Learn more about F# at http://fsharp.org
+// See the 'F# Tutorial' project for more help.
+
+[<EntryPoint>]
+let main argv = 
+    printfn "%A" argv
+    0 // return an integer exit code

tests/projects/vs2019slow/vs2019slow/Script.fsx

@@ -0,0 +1,18 @@
+#load "Script1.fsx"
+#load "Script2.fsx"
+#load "Script3.fsx"
+#load "Script4.fsx"
+#load "Script5.fsx"
+
+//Type some code here
+
+
+Script1.T1
+
+Script3.T11
+
+Script4.
+
+Script2.T100
+
+Script4.T11