renderVarDecl

fn renderVarDecl(
    r: *Render,
    var_decl: Ast.full.VarDecl,
    /// Destructures intentionally ignore leading `comptime` tokens.
    ignore_comptime_token: bool,
    /// `comma_space` and `space` are used for destructure LHS decls.
    space: Space,
) Error!void {
    try renderVarDeclWithoutFixups(r, var_decl, ignore_comptime_token, space);
    if (r.fixups.unused_var_decls.contains(var_decl.ast.mut_token + 1)) {
        // Discard the variable like this: `_ = foo;`
        const ais = r.ais;
        try ais.writeAll("_ = ");
        try ais.writeAll(tokenSliceForRender(r.tree, var_decl.ast.mut_token + 1));
        try ais.writeAll(";\n");
    }
}