❯ ./zig-cache/bin/zig astgen test.zig                                                                                                                                                                                                        
%25 = struct_decl({}, {}, {
  pub main: %2 = block_inline({
    %1 = func([], @Ref.void_type, {
      %0 = ret_coerce(@Ref.void_value) token_offset:1:21
    }) node_offset:1:5
    %3 = break_inline(%2, %1)
  }) node_offset:1:5
  pub f: %23 = block_inline({
    %4 = error_union_type(@Ref.anyerror_type, @Ref.void_type) node_offset:3:20
    %5 = as_node(@Ref.type_type, %4) node_offset:3:20
    %22 = func([], %5, {
      %6 = dbg_stmt_node() node_offset:4:5
      %7 = error_union_type(@Ref.anyerror_type, @Ref.u32_type) node_offset:4:22
      %8 = as_node(@Ref.type_type, %7) node_offset:4:22
      %9 = error_value("V") token_offset:4:35
      %10 = as_node(%8, %9) node_offset:4:29
      %11 = dbg_stmt_node() node_offset:5:7
      %14 = block({
        %12 = is_err(%10) node_offset:5:13
        %13 = condbr(%12, {
          %15 = err_union_payload_unsafe(%10) node_offset:5:13
          %16 = ret_node(%15) node_offset:5:13
        }, {
          %17 = err_union_code(%10) node_offset:5:13
          %18 = ensure_result_non_error(%17) node_offset:5:13
          %19 = break(%14, %17)
        }) node_offset:5:13
      }) node_offset:5:13
      %20 = ensure_result_non_error(%14) node_offset:5:13
      %21 = ret_coerce(@Ref.void_value) token_offset:6:1
    }) node_offset:3:5
    %24 = break_inline(%23, %22)
  }) node_offset:3:5
}) node_offset:1:1
zig/build on  stage2-whole-file-astgen [$!] via ↯ v0.8.0-dev.1982+d605f0275 via ❄️  impure 
❯ cat test.zig
pub fn main() void {}

pub fn f() anyerror!void {
    const e: anyerror!u32 = error.V;
    _ = try e;
}