Loosen version comparisons in loading assemblies (#7042)

Fixes #6993 by matching the .NET Core runtime's behavior (>= requested version is a match).

Author: Forgind

src/Shared/CoreCLRAssemblyLoader.cs

@@ -164,12 +164,10 @@ private Assembly TryResolveAssemblyFromPaths(AssemblyLoadContext context, Assemb
                     }
 
                     AssemblyName candidateAssemblyName = AssemblyLoadContext.GetAssemblyName(candidatePath);
-                    if (candidateAssemblyName.Version != assemblyName.Version)
+                    if (candidateAssemblyName.Version >= assemblyName.Version)
                     {
-                        continue;
+                        return LoadAndCache(context, candidatePath);
                     }
-
-                    return LoadAndCache(context, candidatePath);
                 }
             }
 

src/Shared/MSBuildLoadContext.cs

@@ -53,22 +53,20 @@ public MSBuildLoadContext(string assemblyPath)
                 // bare search directory if that fails.
                 : new[] { assemblyName.CultureName, string.Empty })
             {
-                    var candidatePath = Path.Combine(_directory,
-                        cultureSubfolder,
-                        $"{assemblyName.Name}.dll");
+                var candidatePath = Path.Combine(_directory,
+                    cultureSubfolder,
+                    $"{assemblyName.Name}.dll");
 
-                    if (!FileSystems.Default.FileExists(candidatePath))
-                    {
-                        continue;
-                    }
-
-                    AssemblyName candidateAssemblyName = AssemblyLoadContext.GetAssemblyName(candidatePath);
-                    if (candidateAssemblyName.Version != assemblyName.Version)
-                    {
-                        continue;
-                    }
+                if (!FileSystems.Default.FileExists(candidatePath))
+                {
+                    continue;
+                }
 
+                AssemblyName candidateAssemblyName = AssemblyLoadContext.GetAssemblyName(candidatePath);
+                if (candidateAssemblyName.Version >= assemblyName.Version)
+                {
                     return LoadFromAssemblyPath(candidatePath);
+                }
             }
 
             // If the Assembly is provided via a file path, the following rules are used to load the assembly: