Add a new target.process.memory-cache-line-size to change the size of
lldb's internal memory cache chunks that are read from the remote
system.  For a remote connection that is especially slow, a user may
need to reduce it; reading a 512 byte chunk of memory whenever a
4-byte region is requested may not be the right decision in these
kinds of environments.
<rdar://problem/18175117> 


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@217083 91177308-0d34-0410-b5e6-96231b3b80d8
rdar://problem/18221417
Include compressed memory as part of gauge memory.

git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@217084 91177308-0d34-0410-b5e6-96231b3b80d8