Add include files so that IceCompilerServer.cpp can compile on MSC.

Add include files so that IceCompilerServer.cpp can compile on MSC.

A recent change to IceCompilerServer.cpp was added to allow fatal
errors to return exit status zero. However, this code called ::write
(a C function) that is not defined when compiling with MSC. This CL
adds includes to fix this problem.

BUG=None
R=stichnot@chromium.org

Committed: https://gerrit.chromium.org/gerrit/gitweb?p=native_client/pnacl-subzero.git;a=commit;h=166cbf4a312ce849d38e8799237c47e3d8d6807c

[Karl, 2015-10-01 19:24:48]

kschimpf@google.com changed reviewers:
+ dschuff@chromium.org, stichnot@chromium.org

[Jim Stichnoth, 2015-10-01 20:25:41]

lgtm

[Karl, 2015-10-01 21:23:25]

Committed patchset #2 (id:20001) manually as
166cbf4a312ce849d38e8799237c47e3d8d6807c (presubmit successful).