2020-07-04 zig table not exported

test.wat

(module
  (type (;0;) (func (param i32)))
  (type (;1;) (func (param i32 i32)))
  (type (;2;) (func))
  (type (;3;) (func (param i32) (result i32)))
  (import "env" "register" (func $register (type 0)))
  (func $std.builtin.default_panic (type 1) (param i32 i32)
    (local i32 i32 i32)
    global.get 0
    local.set 2
    i32.const 16
    local.set 3
    local.get 2
    local.get 3
    i32.sub
    local.set 4
    local.get 4
    local.get 1
    i32.store offset=12
    loop  ;; label = @1
      unreachable
      br 0 (;@1;)
    end)
  (func $hello (type 2)
    (local i32)
    i32.const 1
    local.set 0
    local.get 0
    call $register
    return)
  (func $add_one (type 3) (param i32) (result i32)
    (local i32 i32 i32 i32 i32 i32 i32 i32 i32 i32 i32 i32 i32 i32)
    global.get 0
    local.set 1
    i32.const 16
    local.set 2
    local.get 1
    local.get 2
    i32.sub
    local.set 3
    local.get 3
    global.set 0
    local.get 3
    local.get 0
    i32.store offset=8
    local.get 3
    i32.load offset=8
    local.set 4
    i32.const 1
    local.set 5
    local.get 4
    local.get 5
    i32.add
    local.set 6
    local.get 6
    local.get 4
    i32.lt_s
    local.set 7
    i32.const 1
    local.set 8
    local.get 7
    local.get 8
    i32.and
    local.set 9
    block  ;; label = @1
      local.get 9
      i32.eqz
      br_if 0 (;@1;)
      i32.const 1044
      local.set 10
      i32.const 0
      local.set 11
      local.get 10
      local.get 11
      call $std.builtin.default_panic
      unreachable
    end
    local.get 3
    local.get 6
    i32.store offset=12
    local.get 3
    i32.load offset=12
    local.set 12
    i32.const 16
    local.set 13
    local.get 3
    local.get 13
    i32.add
    local.set 14
    local.get 14
    global.set 0
    local.get 12
    return)
  (table (;0;) 2 2 funcref)
  (memory (;0;) 2)
  (global (;0;) (mut i32) (i32.const 66592))
  (export "memory" (memory 0))
  (export "hello" (func $hello))
  (elem (;0;) (i32.const 1) func $add_one)
  (data (;0;) (i32.const 1024) "integer overflow\00\00\00\00\00\04\00\00\10\00\00\00"))

test.zig

export fn hello() void {
    register(add_one);
}

fn add_one(a: i32) callconv(.C) i32 {
    return a + 1;
}

extern fn register(callback: fn (i32) callconv(.C) i32) void;