mpy-cross/mpconfigport.h: Disable MICROPY_COMP_DOUBLE_TUPLE_ASSIGN.
For compatibility with pycopy-lib compiler. MicroPython's builtin compiler
implemented in C operates on CST, and thus quite adhoc, and its behavior
almost impossible to reproduce (without reducing to all the dirty hack
on which that adhoc compiler is built).
#define MICROPY_COMP_CONST_FOLDING (1)
#define MICROPY_COMP_MODULE_CONST (1)
#define MICROPY_COMP_CONST (1)
-#define MICROPY_COMP_DOUBLE_TUPLE_ASSIGN (1)
+#define MICROPY_COMP_DOUBLE_TUPLE_ASSIGN (0)
#define MICROPY_COMP_TRIPLE_TUPLE_ASSIGN (1)
#define MICROPY_COMP_RETURN_IF_EXPR (1)
