hg: jdk/sandbox: 8189429: SA: MacOSX: Replace the deprecated PT_ATTACH with PT_ATTACHEXC

[chris.hegarty at oracle.com]

Changeset: e46b9e514479
Author:    jgeorge
Date:      2018-06-27 20:04 +0530
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/e46b9e514479

8189429: SA: MacOSX: Replace the deprecated PT_ATTACH with PT_ATTACHEXC
Summary: Avoid the waitpid() and receive, handle and reply to the incoming Mach exception message obtained with PT_ATTACHEXC.
Reviewed-by: sballal, erikj, gziemski, rwestberg, dholmes, dcubed, poonam, dsamersoff

! make/RunTestsPrebuiltSpec.gmk
! make/autoconf/basics.m4
! make/autoconf/spec.gmk.in
! make/gensrc/Gensrc-jdk.hotspot.agent.gmk
! make/lib/Lib-jdk.hotspot.agent.gmk
! src/jdk.hotspot.agent/macosx/native/libsaproc/MacosxDebuggerLocal.m