Hojun-Cho
8f85878bb2
The reject table exercised the non-foldable element-type branch only at the def site; let and struct-field covered the foldable range branch alone. Add let_str and struct_str so both reject branches (foldable out-of-range int, non-foldable str) fire at all 3 wiring sites. A rune>u8 over-range row stays unexpressible: the lexer caps rune escapes at \xFF and does not decode multi-byte UTF-8 in a rune literal.