a                                       -- FAIL
a,                                      -- FAIL
a,b,c                                   -- FAIL
a,b =                                   -- FAIL
a = 1
a = 1,2,3
a,b,c = 1
a,b,c = 1,2,3
a.b = 1
a.b.c = 1
a[b] = 1
a[b][c] = 1
a.b[c] = 1
a[b].c = 1
a[b], a[c] = 1
a().b = 1
({})[b] = 1
a""[b] = 1
a{}[b] = 1
({{}})[a][b] = 1
(a).b = 1
(1).a = 0
0 = 0                                   -- FAIL
"foo" = 0                               -- FAIL
true = 0                                -- FAIL
(a) = 0                                 -- FAIL
{} = 0                                  -- FAIL
a, b() c()                              -- FAIL
a, b(), c                               -- FAIL
a:b() = 0                               -- FAIL
a() = 0                                 -- FAIL
a.b:c() = 0                             -- FAIL
a[b]() = 0                              -- FAIL
a = a b                                 -- FAIL
a = 1 2                                 -- FAIL
a = a = 1                               -- FAIL
