step9_interop -> stepA_interop
stepA_more -> step9_try
C: fix glib headers
bash: behavior change of declare -A and pattern replacement.
perl: squelch new 5.18 warnings related to switch/given statement.
Also, include some in-progress interop related files.
- types: low-level mapping to the implementation language.
- core: functions on types that are exposed directly to mal.
- printer: implementation called by pr-str, str, prn, println.
- env: the environment implementation
- Also, unindent all TCO while loops so that the diff of step4 and
step5 are minimized.
