Fix PolyLint errors

Change-Id: I61d0c5530cc8f6f61be7da7e74b6778f45c87c59
diff --git a/polygerrit-ui/app/elements/gr-app.js b/polygerrit-ui/app/elements/gr-app.js
index b19a6ea..846c186 100644
--- a/polygerrit-ui/app/elements/gr-app.js
+++ b/polygerrit-ui/app/elements/gr-app.js
@@ -48,6 +48,7 @@
       _showChangeView: Boolean,
       _showDiffView: Boolean,
       _showSettingsView: Boolean,
+      _showProjectListView: Boolean,
       _showAdminView: Boolean,
       _showCLAView: Boolean,
       _viewState: Object,
diff --git a/polygerrit-ui/app/elements/shared/gr-autocomplete-dropdown/gr-autocomplete-dropdown.js b/polygerrit-ui/app/elements/shared/gr-autocomplete-dropdown/gr-autocomplete-dropdown.js
index 5702795..e610214 100644
--- a/polygerrit-ui/app/elements/shared/gr-autocomplete-dropdown/gr-autocomplete-dropdown.js
+++ b/polygerrit-ui/app/elements/shared/gr-autocomplete-dropdown/gr-autocomplete-dropdown.js
@@ -30,6 +30,7 @@
      */
 
     properties: {
+      index: Number,
       moveToRoot: Boolean,
       fixedPosition: Boolean,
       suggestions: {
diff --git a/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete.html b/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete.html
index afbce45..df4df05 100644
--- a/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete.html
+++ b/polygerrit-ui/app/elements/shared/gr-autocomplete/gr-autocomplete.html
@@ -49,7 +49,7 @@
           on-item-selected="_handleItemSelect"
           suggestions="[[_suggestions]]"
           role="listbox"
-          index="[[index]]"
+          index="[[_index]]"
           hidden$="[[_computeSuggestionsHidden(_suggestions, _focused)]]">
       </gr-autocomplete-dropdown>
     </div>
diff --git a/polygerrit-ui/app/elements/shared/gr-textarea/gr-textarea.html b/polygerrit-ui/app/elements/shared/gr-textarea/gr-textarea.html
index 51e349b..baeb929 100644
--- a/polygerrit-ui/app/elements/shared/gr-textarea/gr-textarea.html
+++ b/polygerrit-ui/app/elements/shared/gr-textarea/gr-textarea.html
@@ -54,8 +54,7 @@
     </style>
     <gr-autocomplete-dropdown id="emojiSuggestions"
         suggestions="[[_suggestions]]"
-        index="[[index]]"
-        position="[[position]]"
+        index="[[_index]]"
         move-to-root
         fixed-position="[[fixedPositionDropdown]]"
         hidden>
@@ -72,4 +71,4 @@
         on-bind-value-changed="_onValueChanged"></iron-autogrow-textarea>
   </template>
   <script src="gr-textarea.js"></script>
-</dom-module>
\ No newline at end of file
+</dom-module>