//ww:error "indexed-lvalue compound on float element not wired (#133/rule-7)"
// Lifted from test/wcc/948_idx_compound_run.c reject row "he_float_indexed"
// (#133-expanded rule-7): a compound assign on an indexed FLOAT element is
// unwired in both stages and MUST loud-fail, not silently fall through to the
// default break (silent miscompile). The substring is the FULL shared
// diagnostic body — byte-identical on both stages (no file:line prefix, no
// cstage "ww: " prefix — both differ cs vs ww).
package main;
export fn main() i32 = {
	let a: [4]f64 = [1.0, 2.0, 3.0, 4.0];
	a[0] += 1.5;
	return 0;
};