check_and_enter_type  289 src/CPlusPlusMangle.cpp     result += prev_decls.check_and_enter_type(mangle_type(return_type, target, prev_decls));
check_and_enter_type  295 src/CPlusPlusMangle.cpp             result += prev_decls.check_and_enter_type(mangle_type(arg.is_expr() ? arg.expr.type() : type_of<struct halide_buffer_t *>(), target, prev_decls));