private static boolean isSuggestedByKeywordCompletion(LookupElement lookupElement) {
    if (lookupElement instanceof PsiTypeLookupItem) {
      PsiType type = ((PsiTypeLookupItem)lookupElement).getType();
      return type instanceof PsiArrayType && ((PsiArrayType)type).getComponentType() instanceof PsiPrimitiveType;
    }
    return false;
  }
private static boolean isSuggestedByKeywordCompletion(LookupElement lookupElement)