patch 8.0.0784: job of terminal may be garbage collected

Problem:    Job of terminal may be garbage collected.
Solution:   Set copyID on job in terminal. (Ozaki Kiichi)
diff --git a/src/eval.c b/src/eval.c
index 401171c..4cb3289 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -5329,6 +5329,10 @@
     abort = abort || set_ref_in_quickfix(copyID);
 #endif
 
+#ifdef FEAT_TERMINAL
+    abort = abort || set_ref_in_term(copyID);
+#endif
+
     if (!abort)
     {
 	/*
diff --git a/src/proto/terminal.pro b/src/proto/terminal.pro
index d7d1538..ac0beb5 100644
--- a/src/proto/terminal.pro
+++ b/src/proto/terminal.pro
@@ -6,4 +6,5 @@
 void term_job_ended(job_T *job);
 void term_update_window(win_T *wp);
 char_u *term_get_status_text(term_T *term);
+int set_ref_in_term(int copyID);
 /* vim: set ft=c : */
diff --git a/src/terminal.c b/src/terminal.c
index 6d8679d..c4e1a52 100644
--- a/src/terminal.c
+++ b/src/terminal.c
@@ -1371,6 +1371,26 @@
     }
 }
 
+/*
+ * Mark references in jobs of terminals.
+ */
+    int
+set_ref_in_term(int copyID)
+{
+    int		abort = FALSE;
+    term_T	*term;
+    typval_T	tv;
+
+    for (term = first_term; term != NULL; term = term->tl_next)
+	if (term->tl_job != NULL)
+	{
+	    tv.v_type = VAR_JOB;
+	    tv.vval.v_job = term->tl_job;
+	    abort = abort || set_ref_in_item(&tv, copyID, NULL, NULL);
+	}
+    return abort;
+}
+
 # endif
 
 #endif /* FEAT_TERMINAL */
diff --git a/src/version.c b/src/version.c
index 1b13fd3..43ea98a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -770,6 +770,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    784,
+/**/
     783,
 /**/
     782,