//ww:error "single-dot field compound on float field"
// Lifted from test/wcc/949_dotfield_compound_run.c reject row "dotfld_he_float"
// (#34/rule-7): a compound assign on a single-dot FLOAT field is unwired in
// both stages and MUST loud-fail, not silently demote to a plain store. The
// substring is the shared diagnostic body — byte-identical on both stages,
// pinned to "float field" so it cannot also match the str/slice/tagged rows
// (no file:line, no cstage "ww: " prefix — both differ cs vs ww).
package main;
type S = struct { f: f64, g: int };
export fn main() i32 = {
	let s: S = S{f=1.0, g=0};
	s.f *= 2.0;
	return 0;
};