[erlang-questions] Runtime crash vs. failed internal consistency check

[Attila Babo]

find_9(<<_:16, Buffer/binary>>) -> <<Buffer>>.

This silly line of code cause an "Internal consistency check failed" error
message in R12B:

*find9: function find_9/1+9:
 Internal consistency check failed - please report this bug.
 Instruction: {bs_put_integer,{f,0},
                              {integer,8},
                              1,
                              {field_flags,[unsigned,big]},
                              {x,0}}
 Error:       {match_context,{x,0}}:*

This message is a huge improvement, as the same code compiles in R11B6, but
causing a runtime crash:

*** exited: {badarg,[{find9,find_9,1},{shell,exprs,6},{shell,eval_loop,3}]}
**

*Am I correct when suspecting that R12B tries to truncate the binary to a
single byte?

Attila
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