Fixed nested definitions listing (#2315)

Author: jsorohova

src/components/operations/operation-details/ko/runtime/operation-details.ts

@@ -345,6 +345,8 @@ export class OperationDetails {
         }
 
         if (definition.type instanceof TypeDefinitionPropertyTypeCombination) {
+            result.push(definition.name);
+            
             if (definition.type.combination) {
                 definition.type.combination.forEach(combinationProperty => {
                     result.push(combinationProperty["name"]);

src/components/operations/operation-details/ko/runtime/type-definition-object.html

@@ -59,7 +59,7 @@
                 <!-- /ko -->
 
                 <!-- ko if: item.displayAs === 'primitive' -->
-                <span class="text-monospace" data-bind="text: item, attr: { title: item.name }"></span>
+                <span class="text-monospace" data-bind="text: item.name, attr: { title: item.name }"></span>
                 <!-- /ko -->
 
                 <!-- /ko -->