An experiment with LLVM to buiild a simple programming frontend.
While the intended syntax is stored in t.wtx, only returning a
value from main is implemented.
Requisites: c++23-compatible compiler, meson, llvm
$ meson setup build
$ meson compile -C build
$ ./build/winter docs/example/return.wtx
$ ./a.out
$ echo $? # Show the return value of the previously executed command