@Deprecated
  public static boolean isAssignable(@Nullable PsiType lType, @Nullable PsiType rType, @NotNull PsiElement context) {
    if (lType == null || rType == null) {
      return false;
    }
    return canAssign(lType, rType, context, Position.ASSIGNMENT) == ConversionResult.OK;
  }
@Deprecated
  public static boolean isAssignable(@Nullable PsiType lType, @Nullable PsiType rType, @NotNull PsiElement context)