segfault using non empty init for tuple with comptime fields

[xdBronch]

Zig Version

0.12.0-dev.1856+94c63f31f

Steps to Reproduce and Observed Behavior

test {
    const a: struct { comptime comptime_int = 0 } = .{0};
    _ = a;
}

https://gist.github.com/xdBronch/95e58100607a391599c2386efcd7d93c

Expected Behavior

probably test pass since the init has the same value as the default value, error otherwise

[Vexu]

tupleFieldPtr and friends should be calling resolveStructFieldInits before calling structFieldValueComptime as is done in zirArrayInit for example.

Regression from #17692.

[xdBronch]

is this diff correct/all thats needed? id like to pr if so :) my test case passes now and i ran test-behavior + test-std locally and both passed

diff --git a/src/Sema.zig b/src/Sema.zig
index f54966f33..741e1dbd7 100644
--- a/src/Sema.zig
+++ b/src/Sema.zig
@@ -27477,6 +27477,9 @@ fn tupleFieldPtr(
         },
     });
 
+    if (tuple_ty.structFieldIsComptime(field_index, mod))
+        try sema.resolveStructFieldInits(tuple_ty);
+
     if (try tuple_ty.structFieldValueComptime(mod, field_index)) |default_val| {
         return Air.internedToRef((try mod.intern(.{ .ptr = .{
             .ty = ptr_field_ty.toIntern(),

[Vexu]

Should be. Could you also apply it to the other related functions?