Avoid dependency on List.Sort

Author: jkotas

src/coreclr/System.Private.CoreLib/src/System/RuntimeHandles.cs

@@ -1231,7 +1231,7 @@ internal static RuntimeType[] GetMethodInstantiationInternal(RuntimeMethodHandle
 
         internal static Type[]? GetMethodInstantiationPublic(IRuntimeMethodInfo method)
         {
-            RuntimeType[]? types = null;
+            Type[]? types = null;
             GetMethodInstantiation(EnsureNonNullMethodInfo(method).Value, ObjectHandleOnStack.Create(ref types), Interop.BOOL.FALSE);
             GC.KeepAlive(method);
             return types;

src/libraries/System.Diagnostics.DiagnosticSource/src/System/Diagnostics/Metrics/Meter.cs

@@ -3,6 +3,7 @@
 
 using System.Collections.Generic;
 using System.ComponentModel;
+using System.Collections.ObjectModel;
 using System.Diagnostics;
 using System.Diagnostics.CodeAnalysis;
 using System.Threading;
@@ -78,9 +79,9 @@ private void Initialize(string name, string? version, IEnumerable<KeyValuePair<s
             Version = version;
             if (tags is not null)
             {
-                var tagList = new List<KeyValuePair<string, object?>>(tags);
-                tagList.Sort((left, right) => string.Compare(left.Key, right.Key, StringComparison.Ordinal));
-                Tags = tagList.AsReadOnly();
+                var tagList = new List<KeyValuePair<string, object?>>(tags).ToArray();
+                Array.Sort(tagList, (left, right) => string.Compare(left.Key, right.Key, StringComparison.Ordinal));
+                Tags = new ReadOnlyCollection<KeyValuePair<string, object?>>(tagList);
             }
             Scope = scope;
             TelemetrySchemaUrl = telemetrySchemaUrl;