Make uniform in the .csproj files the enabling of preview features and making sure runtime-async=on.

Author: dmiller

Clojure/Clojure.Compile/Clojure.Compile.csproj

@@ -7,9 +7,13 @@
     <StartupObject>BootstrapCompile.Compile</StartupObject>
 	  <EnableUnsafeBinaryFormatterSerialization>true</EnableUnsafeBinaryFormatterSerialization>
 	  <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings>
-	  <EnablePreviewFeatures Condition="  '$(TargetFramework)' == 'net11.0'">True</EnablePreviewFeatures>
   </PropertyGroup>
 
+	<PropertyGroup Condition="'$(TargetFramework)' == 'net11.0'">
+		<EnablePreviewFeatures>true</EnablePreviewFeatures>
+		<Features>$(Features);runtime-async=on</Features>
+	</PropertyGroup>
+
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
     <WarningLevel>0</WarningLevel>
   </PropertyGroup>

Clojure/Clojure.Main/Clojure.Main.csproj

@@ -8,9 +8,13 @@
 	 <PackAsTool>true</PackAsTool>
 	 <EnableUnsafeBinaryFormatterSerialization>true</EnableUnsafeBinaryFormatterSerialization>
 	  <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings>
-	  <EnablePreviewFeatures Condition="  '$(TargetFramework)' == 'net11.0'">True</EnablePreviewFeatures>
   </PropertyGroup>
 
+	<PropertyGroup Condition="'$(TargetFramework)' == 'net11.0'">
+		<EnablePreviewFeatures>true</EnablePreviewFeatures>
+		<Features>$(Features);runtime-async=on</Features>
+	</PropertyGroup>
+	
 	<PropertyGroup>
 		<Title>ClojureCLR-REPL</Title>
 		<Description>Standard REPL for ClojureCLR.</Description>

Clojure/Clojure.Tests.Support/Clojure.Tests.Support.csproj

@@ -4,9 +4,13 @@
 	  <TargetFrameworks>net6.0;net8.0;net9.0;net10.0;net11.0;net462;net481</TargetFrameworks>
 	  <LangVersion>14.0</LangVersion>
 	  <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings>
-	  <EnablePreviewFeatures Condition="  '$(TargetFramework)' == 'net11.0'">True</EnablePreviewFeatures>
   </PropertyGroup>
 
+	<PropertyGroup Condition="'$(TargetFramework)' == 'net11.0'">
+		<EnablePreviewFeatures>true</EnablePreviewFeatures>
+		<Features>$(Features);runtime-async=on</Features>
+	</PropertyGroup>	
+	
   <ItemGroup>
     <ProjectReference Include="..\Clojure\Clojure.csproj" />
   </ItemGroup>

Clojure/Csharp.Tests/Csharp.Tests.csproj

@@ -7,9 +7,13 @@
     <IsTestProject>true</IsTestProject>
 	  <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings>
 	  <NoWarn>CS8002</NoWarn>
-	  <EnablePreviewFeatures Condition="  '$(TargetFramework)' == 'net11.0'">True</EnablePreviewFeatures>
   </PropertyGroup>
 
+	<PropertyGroup Condition="'$(TargetFramework)' == 'net11.0'">
+		<EnablePreviewFeatures>true</EnablePreviewFeatures>
+		<Features>$(Features);runtime-async=on</Features>
+	</PropertyGroup>
+
   <ItemGroup>
     <PackageReference Include="clojure.core.specs.alpha"/>
     <PackageReference Include="DynamicLanguageRuntime"/>