Fix adding CCs

Somehow the gr-autocomplete for CCs was not aware that it should allow
non suggested values. Pass the necessary property (allowAnyInput) from
gr-account-list to gr-account-entry and then to the autocomplete.

Bug: Issue 7802
Change-Id: Idd9533ef409fde97ebcfb15a349108d1f314fc38

polygerrit-ui/app/elements/change/gr-account-entry/gr-account-entry.html

@@ -35,6 +35,7 @@ limitations under the License.
         placeholder="[[placeholder]]"
         threshold="[[suggestFrom]]"
         query="[[query]]"
+        allow-non-suggested-values="[[allowAnyInput]]"
         on-commit="_handleInputCommit"
         clear-on-commit
         warn-uncommitted>

polygerrit-ui/app/elements/change/gr-account-entry/gr-account-entry.js

@@ -23,9 +23,9 @@
      * @event add
      */
     properties: {
+      allowAnyInput: Boolean,
       borderless: Boolean,
       change: Object,
-      _config: Object,
       filter: Function,
       placeholder: String,
       /**
@@ -51,6 +51,8 @@
           return this._getReviewerSuggestions.bind(this);
         },
       },
+
+      _config: Object,
     },
 
     behaviors: [

polygerrit-ui/app/elements/change/gr-account-list/gr-account-list.html

@@ -69,6 +69,7 @@ limitations under the License.
         placeholder="[[placeholder]]"
         on-add="_handleAdd"
         on-input-keydown="_handleInputKeydown"
+        allow-any-input="[[allowAnyInput]]"
         allow-any-user="[[allowAnyUser]]">
     </gr-account-entry>
   </template>