Fix NuGet restore behavior for unspecified version and add corresponding tests

Author: NikolayPianikov

CSharpInteractive.Tests/Integration/NuGetTests.cs

@@ -54,5 +54,25 @@ public void ShouldSupportRestoreWhenScript()
         result.ExitCode.ShouldBe(0, result.ToString());
     }
 
+    [Fact]
+    public void ShouldRestoreLatestVersionWhenNoVersionSpecified()
+    {
+        // Given
+        var nuget = Composition.Shared.Root.NuGet;
+
+        // When
+        var version = nuget.Value
+            .Restore(new NuGetRestoreSettings("Pure.DI")
+                .WithHideWarningsAndErrors(true)
+                .WithNoCache(true))
+            .Where(i => i.Name == "Pure.DI")
+            .Select(i => i.NuGetVersion)
+            .Max();
+
+        // Then
+        version.ShouldNotBeNull();
+        version.ShouldBeGreaterThan(new NuGetVersion(1, 0, 0));
+    }
+
     private static string CreateTempDirectory() => Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString()[..4]);
 }

CSharpInteractive.Tests/Integration/ScriptRunTests.cs

@@ -188,6 +188,7 @@ public void ShouldSupportInfo()
     [InlineData("nuget: IoC.Container, 1.3.6", "//1")]
     [InlineData("nuget:IoC.Container,1.3.6", "//1")]
     [InlineData("nuget: IoC.Container, [1.3.6, 2)", "//1")]
+    [InlineData("nuget: IoC.Container", "//1")]
     public void ShouldSupportNuGetRestore(string package, string name)
     {
         // Given

CSharpInteractive/Core/NuGetRestoreService.cs

@@ -69,7 +69,7 @@ public bool TryRestore(NuGetRestoreSettings settings, out string projectAssetsJs
         {
             LibraryRange = new LibraryRange(
                 settings.PackageId,
-                settings.VersionRange ?? VersionRange.All,
+                settings.VersionRange ?? VersionRange.Parse("*"),
                 LibraryDependencyTarget.Package),
             IncludeType = LibraryIncludeFlags.All
         };