Add more debug information.

Re-commit https://googleplex-android-review.googlesource.com/#/c/519430/
Add fix for win_sdk build.

Add socketpair debug log.
Also output thread information in log on host side.

(cherry-pick of d1cfb037fa5b354187880943b8e9870ce3451785.)

Change-Id: I21021bc111a3f7362a91b70593e3738125878118
diff --git a/jdwp_service.c b/jdwp_service.c
index cd62b55..3074e42 100644
--- a/jdwp_service.c
+++ b/jdwp_service.c
@@ -415,6 +415,7 @@
               __FUNCTION__, strerror(errno));
             return -1;
         }
+        D("socketpair: (%d,%d)", fds[0], fds[1]);
 
         proc->out_fds[ proc->out_count ] = fds[1];
         if (++proc->out_count == 1)