Add DebuggerDisplay to Meter and Instruments

src/libraries/System.Diagnostics.DiagnosticSource/src/System/Diagnostics/Metrics/Instrument.common.cs

@@ -11,6 +11,7 @@ namespace System.Diagnostics.Metrics
     /// <remarks>
     /// This class supports only the following generic parameter types: <see cref="byte" />, <see cref="short" />, <see cref="int" />, <see cref="long" />, <see cref="float" />, <see cref="double" />, and <see cref="decimal" />
     /// </remarks>
+    [DebuggerDisplay("Name = {Name}, Meter = {Meter.Name}")]
     public abstract partial class Instrument<T> : Instrument where T : struct
     {
         /// <summary>

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

@@ -10,6 +10,7 @@ namespace System.Diagnostics.Metrics
     /// <summary>
     /// Meter is the class responsible for creating and tracking the Instruments.
     /// </summary>
+    [DebuggerDisplay("Name = {Name}, Instruments = {_instruments.Count}")]
     public class Meter : IDisposable
     {
         private static readonly List<Meter> s_allMeters = new List<Meter>();