[Bug c++/85952] New: Bogus -Wunused-but-set-variable warning with array structured binding

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85952

            Bug ID: 85952
           Summary: Bogus -Wunused-but-set-variable warning with array
                    structured binding
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jakub at gcc dot gnu.org
  Target Milestone: ---

int
foo ()
{
  int a[2] = {1, 2};    // { dg-bogus "set but not used" } */
  auto [x, y] = a;
  return x + y;
}

should not warn, but we handle the array temporary initialization from another
array for structured bindings quite specially.