tree 3a1d4da1bf1ec9c4397c52e084d1056939c34034
parent 30b65201aa9c953433dbde1288e9b1b883042cd1
author Ian Rogers <irogers@google.com> 1400170283 -0700
committer Ian Rogers <irogers@google.com> 1400170283 -0700

Fix CompilationUnit constructor issues.

Ensure target64 is initialized. Switch from NULL to nullptr as the former gives
compilation errors with std::unique_ptr from libc++.

Change-Id: I7153368d9324d10ef257f7c7ce9571a1753e5ba8