runtime0.h: Group binary ops by fives.

So one has some chance to convert numeric op code into symbol.

py/runtime0.h

@@ -55,32 +55,38 @@ typedef enum {
     MP_BINARY_OP_AND,
     MP_BINARY_OP_LSHIFT,
     MP_BINARY_OP_RSHIFT,
+
     MP_BINARY_OP_ADD,
     MP_BINARY_OP_SUBTRACT,
     MP_BINARY_OP_MULTIPLY,
     MP_BINARY_OP_FLOOR_DIVIDE,
     MP_BINARY_OP_TRUE_DIVIDE,
+
     MP_BINARY_OP_MODULO,
     MP_BINARY_OP_POWER,
     MP_BINARY_OP_INPLACE_OR,
     MP_BINARY_OP_INPLACE_XOR,
     MP_BINARY_OP_INPLACE_AND,
+
     MP_BINARY_OP_INPLACE_LSHIFT,
     MP_BINARY_OP_INPLACE_RSHIFT,
     MP_BINARY_OP_INPLACE_ADD,
     MP_BINARY_OP_INPLACE_SUBTRACT,
     MP_BINARY_OP_INPLACE_MULTIPLY,
+
     MP_BINARY_OP_INPLACE_FLOOR_DIVIDE,
     MP_BINARY_OP_INPLACE_TRUE_DIVIDE,
     MP_BINARY_OP_INPLACE_MODULO,
     MP_BINARY_OP_INPLACE_POWER,
     // these should return a bool
     MP_BINARY_OP_LESS,
+
     MP_BINARY_OP_MORE,
     MP_BINARY_OP_EQUAL,
     MP_BINARY_OP_LESS_EQUAL,
     MP_BINARY_OP_MORE_EQUAL,
     MP_BINARY_OP_NOT_EQUAL,
+
     MP_BINARY_OP_IN,
     MP_BINARY_OP_IS,
     MP_BINARY_OP_EXCEPTION_MATCH,