title: Operator == cannot be applied to 'Long' and 'Int' in Kotlin
body: <p>I'm attempting to implement parts of Mike Penz' NavigationDrawer (<a href="https://github.com/mikepenz/MaterialDrawer" rel="noreferrer">https://github.com/mikepenz/MaterialDrawer</a>) in Kotlin. Since then I've run into only a few issues, primarily with operators. Here is part of the code to instantiate the drawer itself. Android Studio doesn't throw any errors except where I'm using the == operator on int and Long variables:</p>
  
  <pre><code>        // Create the Drawer
          result = DrawerBuilder()
                  .withSliderBackgroundColor(ContextCompat.getColor(applicationContext, R.color.top_header))
                  .withActivity(this)
                  .withToolbar(toolbar)
                  .withHasStableIds(true)
                  .withItemAnimator(AlphaCrossFadeAnimator())
                  .withAccountHeader(headerResult!!)
                  .addDrawerItems(
                          PrimaryDrawerItem().withName(R.string.drawer_item_profile).withIcon(FontAwesome.Icon.faw_user).withIdentifier(1).withSelectable(false).withIconColor(ContextCompat.getColor(applicationContext, R.color.icon_grey)).withTextColor(ContextCompat.getColor(applicationContext, R.color.stroke)),
                          PrimaryDrawerItem().withName(R.string.drawer_item_create).withIcon(FontAwesome.Icon.faw_paint_brush).withIdentifier(2).withSelectable(false).withIconColor(ContextCompat.getColor(applicationContext, R.color.icon_grey)).withTextColor(ContextCompat.getColor(applicationContext, R.color.stroke)),
                          PrimaryDrawerItem().withName(R.string.drawer_item_yaanich_news).withIcon(FontAwesome.Icon.faw_newspaper_o).withIdentifier(3).withSelectable(false).withIconColor(ContextCompat.getColor(applicationContext, R.color.icon_grey)).withTextColor(ContextCompat.getColor(applicationContext, R.color.stroke)),
                          PrimaryDrawerItem().withName(R.string.drawer_item_my_groups).withIcon(FontAwesome.Icon.faw_users).withIdentifier(4).withSelectable(false).withIconColor(ContextCompat.getColor(applicationContext, R.color.icon_grey)).withTextColor(ContextCompat.getColor(applicationContext, R.color.stroke)),
                          PrimaryDrawerItem().withName(R.string.drawer_item_settings).withIcon(FontAwesome.Icon.faw_cog).withIdentifier(5).withSelectable(false).withIconColor(ContextCompat.getColor(applicationContext, R.color.icon_grey)).withTextColor(ContextCompat.getColor(applicationContext, R.color.stroke))
                  )
                  .withOnDrawerItemClickListener { view, position, drawerItem -&gt;
  
                      if (drawerItem != null) {
                          var intent: Intent? = null
                          if (drawerItem.identifier == (1) {
                              intent = Intent(this, UserProfileActivity::class.java)
                          } else if (drawerItem.identifier == 2) {
                              intent = Intent(this, YeetActivity::class.java)
                          } else if (drawerItem.identifier == 3) {
                              intent = Intent(this, RssActivity::class.java)
                          } else if (drawerItem.identifier == 4) {
                              intent = Intent(this, GroupsActivity::class.java)
                          } else if (drawerItem.identifier == 5) {
                              intent = Intent(this, UserSettingsActivity::class.java)
                          }
                          if (intent != null) {
                              this.startActivity(intent)
                          }
                      }
                      false
                  }
                  .withSavedInstance(savedInstanceState)
                  .withShowDrawerOnFirstLaunch(true)
                  .build()
  
          RecyclerViewCacheUtil&lt;IDrawerItem&lt;*, *&gt;&gt;().withCacheSize(2).apply(result!!.recyclerView, result!!.drawerItems)
  
          if (savedInstanceState == null) {
              result!!.setSelection(21, false)
              headerResult!!.activeProfile = profile
          }
      }
  </code></pre>
  
  <p><strong>Errors:</strong></p>
  
  <p><code>if (drawerItem.identifier == (1)</code></p>
  
  <p><code>if (drawerItem.identifier == 2)</code></p>
  
  <p><code>Operator == cannot be applied to 'Long and' 'Int'</code></p>