[PATCH] Processes that spawn other processes should wait for their children to exit before exiting due to a signal.

[Sean Silva]

================
Comment at: lib/Support/Unix/Program.inc:72
@@ -67,1 +71,3 @@
 
+static ManagedStatic<std::vector<ProcessInfo>> ChildPIDs;
+
----------------
Do pids ever get pushed onto here? or is that an upcoming patch?

http://reviews.llvm.org/D9420

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