Modify ClrDataAccess::StartEnumMethodInstancesByAddress HResult on failure (#119021)

* ClrDataAccess::StartEnumMethodInstancesByAddress previously returned a S_OK code on failure. This change ensures a failure code is returned on failure.

Author: max-charlamb

src/coreclr/debug/daccess/daccess.cpp

@@ -4183,6 +4183,7 @@ ClrDataAccess::StartEnumMethodInstancesByAddress(
         methodDesc = ExecutionManager::GetCodeMethodDesc(taddr);
         if (!methodDesc)
         {
+            status = S_FALSE;
             goto Exit;
         }
 

src/native/managed/cdac/mscordaccore_universal/Legacy/SOSDacImpl.IXCLRDataProcess.cs

@@ -331,10 +331,8 @@ private bool HasMethodInstantiation(MethodDescHandle md)
 
     int IXCLRDataProcess.StartEnumMethodInstancesByAddress(ClrDataAddress address, /*IXCLRDataAppDomain*/ void* appDomain, ulong* handle)
     {
-        int hr = HResults.S_OK;
-
+        int hr = HResults.S_FALSE;
         *handle = 0;
-        hr = HResults.S_FALSE;
 
         ulong handleLocal = default;
 #if DEBUG