Revert "Renamed SimpleCType to LiteralCType"
Revert "Renamed SimpleCType to LiteralCType"

This reverts commit a636882bc07411da394f9fe9a98eae3a14d1375a.
As I suggested I might, I think I'll refrain from using string literals
for now, and stick with a simple/array/pointer distinction similar to
what I was originally planning.

benstreb/os-test-harness,benstreb/os-test-harness