[PATCH] Use 'event_ptid' instead of 'resume_ptid' on startup_inferior (fix for regression on my last commit)

[Sergio Durigan Junior <sergiodj@redhat.com>]

Pedro pointed out a regression happening on gdb.mi/mi-exec-run.exp,
and as it turned out, this was a thinko when dealing with some events
on startup_inferior.  Basically, one needs to pass 'event_ptid' to
target_mourn_inferior, but I mistakenly passed 'resume_ptid'.

This commit fixes it.

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gdb/ChangeLog:
2016-09-20  Sergio Durigan Junior  <sergiodj@redhat.com>

	* fork-inferior.c (startup_inferior): Pass 'event_ptid' instead of
	'resume_ptid' to 'target_mourn_inferior'.  Fix regression
	introduced by my last commit.
---
 gdb/ChangeLog    | 6 ++++++
 gdb/fork-child.c | 4 ++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 26b97e6..0dacaf6 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+2016-09-20  Sergio Durigan Junior  <sergiodj@redhat.com>
+
+	* fork-inferior.c (startup_inferior): Pass 'event_ptid' instead of
+	'resume_ptid' to 'target_mourn_inferior'.  Fix regression
+	introduced by my last commit.
+
 2016-09-19  Pedro Alves  <palves@redhat.com>
 
 	* common/gdb_locale.h [!ENABLE_NLS] (gettext, dgettext, dcgettext,
diff --git a/gdb/fork-child.c b/gdb/fork-child.c
index f367507..15f8249 100644
--- a/gdb/fork-child.c
+++ b/gdb/fork-child.c
@@ -482,7 +482,7 @@ startup_inferior (int ntraps)
 
 	  case TARGET_WAITKIND_SIGNALLED:
 	    target_terminal_ours ();
-	    target_mourn_inferior (resume_ptid);
+	    target_mourn_inferior (event_ptid);
 	    error (_("During startup program terminated with signal %s, %s."),
 		   gdb_signal_to_name (ws.value.sig),
 		   gdb_signal_to_string (ws.value.sig));
@@ -490,7 +490,7 @@ startup_inferior (int ntraps)
 
 	  case TARGET_WAITKIND_EXITED:
 	    target_terminal_ours ();
-	    target_mourn_inferior (resume_ptid);
+	    target_mourn_inferior (event_ptid);
 	    if (ws.value.integer)
 	      error (_("During startup program exited with code %d."),
 		     ws.value.integer);
-- 
2.7.4