Setting member default values causes false detection of a dependency loop

[papparapa]

Zig Version

0.12.0-dev.926+3be8490d8

Steps to Reproduce and Observed Behavior

The following codes cannot be compiled.

const A = struct {
 b: ?*B = null,
 n: usize,
};

const B = struct {
 a: A = A{ .n = 1 },
};

pub fn main() void {
 _ = A{ .n = 10 };
}

$ zig build-exe false_dependency_loop.zig
false_dependency_loop.zig:1:11: error: struct 'false_dependency_loop.A' depends on itself
const A = struct {
 ^~~~~~
$

Expected Behavior

I expect the compile gets successful since A.b is a pointer.

[kcbanner]

#17490 may solve this

[kcbanner]

Confirming that PR does fix this case.

[papparapa]

I found that this issue was resolved in 0.12.0-dev.1504+81219586b at the latest, meybe thanks to #17692