Fix building with GVM_RESOLUTION_TRACE defined (#118160)

`MethodNameAndSignature` no longer has the `string`-typed property.

Author: MichalStrehovsky

src/coreclr/nativeaot/System.Private.TypeLoader/src/Internal/Runtime/TypeLoader/TypeLoaderEnvironment.GVMResolution.cs

@@ -330,7 +330,7 @@ private static InstantiatedMethod ResolveInterfaceGenericVirtualMethodSlot(DefTy
             RuntimeTypeHandle openTargetTypeHandle = targetType.GetTypeDefinition().RuntimeTypeHandle;
 
 #if GVM_RESOLUTION_TRACE
-            Debug.WriteLine("INTERFACE GVM call = " + GetTypeNameDebug(slotMethod.OwningType) + "." + slotMethod.NameAndSignature.Name);
+            Debug.WriteLine("INTERFACE GVM call = " + GetTypeNameDebug(slotMethod.OwningType) + "." + slotMethod.Name);
 #endif
 
             foreach (NativeFormatModuleInfo module in ModuleList.EnumerateModules(RuntimeAugments.GetModuleFromTypeHandle(openTargetTypeHandle)))
@@ -459,7 +459,7 @@ private static InstantiatedMethod ResolveGenericVirtualMethodTarget(DefType targ
             hashCode = ((hashCode << 13) ^ hashCode) ^ openTargetTypeHandle.GetHashCode();
 
 #if GVM_RESOLUTION_TRACE
-            Debug.WriteLine("GVM Target Resolution = " + GetTypeNameDebug(targetType) + "." + slotMethod.NameAndSignature.Name);
+            Debug.WriteLine("GVM Target Resolution = " + GetTypeNameDebug(targetType) + "." + slotMethod.Name);
 #endif
 
             foreach (NativeFormatModuleInfo module in ModuleList.EnumerateModules(RuntimeAugments.GetModuleFromTypeHandle(openTargetTypeHandle)))