Do not omit the anyFunctionType from intersections (microsoft#35658)

* Do not omit the anyFunctionType from intersections

* Move check into isEmptyResolvedType

Author: weswigham

src/compiler/checker.ts

@@ -14410,7 +14410,8 @@ namespace ts {
         }
 
         function isEmptyResolvedType(t: ResolvedType) {
-            return t.properties.length === 0 &&
+            return t !== anyFunctionType &&
+                t.properties.length === 0 &&
                 t.callSignatures.length === 0 &&
                 t.constructSignatures.length === 0 &&
                 !t.stringIndexInfo &&