patch 8.0.0379: CTRL-Z and mouse click use CTRL-O unnecessary

Problem:    CTRL-Z and mouse click use CTRL-O unnecessary.
Solution:   Remove stuffing CTRL-O. (James McCoy, closes #1453)

Author: brammool

src/edit.c

@@ -1038,8 +1038,10 @@ edit(
 	    if (!p_im)
 		goto normalchar;	/* insert CTRL-Z as normal char */
 	    do_cmdline_cmd((char_u *)"stop");
-	    c = Ctrl_O;
-	    /*FALLTHROUGH*/
+#ifdef CURSOR_SHAPE
+	    ui_cursor_shape();		/* may need to update cursor shape */
+#endif
+	    continue;
 
 	case Ctrl_O:	/* execute one command */
 #ifdef FEAT_COMPL_FUNC

src/normal.c

@@ -2982,8 +2982,6 @@ do_mouse(
 		|| (mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
 	    && bt_quickfix(curbuf))
     {
-	if (State & INSERT)
-	    stuffcharReadbuff(Ctrl_O);
 	if (curwin->w_llist_ref == NULL)	/* quickfix window */
 	    do_cmdline_cmd((char_u *)".cc");
 	else					/* location list window */
@@ -6193,10 +6191,12 @@ nv_down(cmdarg_T *cap)
 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
     /* In a quickfix window a <CR> jumps to the error under the cursor. */
     if (bt_quickfix(curbuf) && cap->cmdchar == CAR)
+    {
 	if (curwin->w_llist_ref == NULL)
 	    do_cmdline_cmd((char_u *)".cc");	/* quickfix window */
 	else
 	    do_cmdline_cmd((char_u *)".ll");	/* location list window */
+    }
     else
 #endif
     {

src/version.c

@@ -764,6 +764,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    379,
 /**/
     378,
 /**/