verilator 3.855

Closes #27108.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Fix the bad value of EC2_HOME in the standard_instructions

Change EC2_HOME's value from 'export EC2_HOME="/usr/local/Cellar/ec2-api-tools/1.6.12.0/"'
to 'export EC2_HOME="/usr/local/Cellar/ec2-api-tools/1.6.12.0/libexec"'

Avoide the wrong value of EC_HOME caused by
024208466bfb4ffb479d48709caecc6a1e85ba4d

Closes #25918.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
sbcl: prefer new-style 'build.with?'
sbcl: compile with core-compression unless disabled

Core compression support allows SBCL to save compressed cores, which
reduce on-disk footprint of compressed cores. Adds a dependency on zlib,
but OS X-provided zlib works just fine.

For details: http://xach.livejournal.com/295584.html
sbcl: update 1.1.16 bottle.