fix(runtime): read no inspector flags from a nil Arguments array

Config.Arguments is optional, but ArgumentsCount was handed to the
inspector as is, so a nil array with a count above one made debug
startup index a null argv. Pass a count of 0 when the array is nil;
the argv loop keeps the C contract and trusts the count it is given.

Author: adrian-niculescu

NativeScript/NativeScript.mm

@@ -184,7 +184,9 @@ - (instancetype)initializeWithConfig:(Config*)config {
           new v8_inspector::JsV8InspectorClient(runtime_.get());
       inspectorClient->init();
       inspectorClient->registerModules();
-      inspectorClient->connect([config ArgumentsCount], [config Arguments]);
+      // A nil Arguments array carries no inspector flags, whatever ArgumentsCount says.
+      inspectorClient->connect(config.Arguments != nullptr ? config.ArgumentsCount : 0,
+                               config.Arguments);
       Console::AttachInspectorClient(inspectorClient);
     }
   }