I don't know PICs but I know the 8051 which also has bit addressable memory.
8051 C compilers have compiler directives that let you specify the memory space. So for the Keil 8051 compiler:
bdata unsigned char Big[7];
bit Little = big[0].0;
should give you an array of 7 bytes in the bit addressable memory segment. That #bit looks like its specifying Bit addressable memory - You just need to find the compiler directive that specifies a byte of bit addressable memory.