extract import from host code and load them
save pd to stack and restore through a commit
some hacks to include to make it work
load the inline block for prepush and postpop
only generate C code for lang indep tests, don't require txl
subst the full path to colm
removed the check for TXL
use the full path to COLM found at configure time
building up the test translator for C
translate enough of the lang-indep code to make atoi1.rl work
eliminated the indep_host namespace
find the machine name test case translate and use for first_final ref
use the #ifdef syntax for OUTPUT in lang-indep tests

This now matches the runtest syntax for output. The ifdef syntax was
inconvenient with the TXL lang trans because of a conflict with ragel comments,
so C comments were used. Now that we want to parse C comments to extract
variables, it is better to use the ifdef syntax and we can do it more easily in
colm.
parse values in the comments and read/use @NEEDS_EOF
use ifdef syntax for input in lang-independent tests
trans: added arrays, init code and printb
atoi2 and clang4 now passing
added support for ptr, print_token, first_token_char
cond1, cond7 and cppscan6 now working
remainder of lang-indep test cases now working