Check for ComInterop case for async variants in crossgen2

src/coreclr/tools/Common/JitInterface/CorInfoImpl.cs

@@ -1546,7 +1546,7 @@ static CORINFO_RESOLVED_TOKEN CreateResolvedTokenFromMethod(CorInfoImpl jitInter
             {
                 method = method.GetTargetOfAsyncVariant();
             }
-            else if (method.Signature.ReturnsTaskOrValueTask())
+            else if (HasCallableAsyncVariant(method))
             {
                 method = method.GetAsyncVariant();
             }
@@ -1874,15 +1874,7 @@ private void resolveToken(ref CORINFO_RESOLVED_TOKEN pResolvedToken)
 
                 if (pResolvedToken.tokenType is CorInfoTokenKind.CORINFO_TOKENKIND_Await)
                 {
-                    // in rare cases a method that returns Task is not actually TaskReturning (i.e. returns T).
-                    // we cannot resolve to an Async variant in such case.
-                    // return NULL, so that caller would re-resolve as a regular method call
-                    bool allowAsyncVariant = method.GetTypicalMethodDefinition().Signature.ReturnsTaskOrValueTask();
-
-                    // Don't get async variant of Delegate.Invoke method; the pointed to method is not an async variant either.
-                    allowAsyncVariant = allowAsyncVariant && !method.OwningType.IsDelegate;
-
-                    method = allowAsyncVariant
+                    method = HasCallableAsyncVariant(method)
                         ? _compilation.TypeSystemContext.GetAsyncVariantMethod(method)
                         : null;
                 }
@@ -1955,6 +1947,33 @@ private void resolveToken(ref CORINFO_RESOLVED_TOKEN pResolvedToken)
             pResolvedToken.cbMethodSpec = 0;
         }
 
+        private static bool HasCallableAsyncVariant(MethodDesc method)
+        {
+            // In some cases a method that returns Task is not actually
+            // TaskReturning (i.e. it might return T). We cannot resolve to an
+            // async variant in such case.
+            if (!method.GetTypicalMethodDefinition().Signature.ReturnsTaskOrValueTask())
+            {
+                return false;
+            }
+
+            // Don't get async variant of Delegate.Invoke method; the pointed
+            // to method is not an async variant either.
+            if (method.OwningType.IsDelegate)
+            {
+                return false;
+            }
+
+            // Don't get async variant of ComImport methods since we do not
+            // generate any runtime async entry points for them.
+            if (method.OwningType.IsComImport)
+            {
+                return false;
+            }
+
+            return true;
+        }
+
         private void findSig(CORINFO_MODULE_STRUCT_* module, uint sigTOK, CORINFO_CONTEXT_STRUCT* context, CORINFO_SIG_INFO* sig)
         {
             var methodIL = HandleToObject(module);