
This change adds a new send/receive type to the PVM comm layer: real.

This change adds CHPL_TYPE_real32_t and CHPL_TYPE_real64_t to the PVM comm
layer. These are implemented via chpl_pkfloat32_t, chpl_upkfloat32_t,
chpl_pkdouble64_t, and chpl_upkdouble64_t. They work like the int cases
except they use u/pkfloat. The double case, in that it is broken into
pieces, still uses int (and casts after the fact).



git-svn-id: 88467cb1fb04b8a755be7e1ee1026be4190196ef@15914 3a8e244f-b0f2-452b-bcba-4c88e055c3ca

sungeunchoi/chapel,CoryMcCartan/chapel,sungeunchoi/chapel,hildeth/chapel,sungeunchoi/chapel,sungeunchoi/chapel,sungeunchoi/chapel,chizarlicious/chapel,chizarlicious/chapel,chizarlicious/chapel,CoryMcCartan/chapel,hildeth/chapel,hildeth/chapel,chizarlicious/chapel,CoryMcCartan/chapel,sungeunchoi/chapel,CoryMcCartan/chapel,CoryMcCartan/chapel,hildeth/chapel,sungeunchoi/chapel,CoryMcCartan/chapel,hildeth/chapel,CoryMcCartan/chapel,hildeth/chapel,sungeunchoi/chapel,hildeth/chapel,chizarlicious/chapel,chizarlicious/chapel,chizarlicious/chapel