pkg/terminal: Ignore existing breakpoints for continue until (#2624)

Ignore existing breakpoints when using the continue command to continue
to a specific location such as `continue main.main`. The point of this
command is to continue to a specific location, so if there is already a
breakpoint set there there should be no error returned, just continue
until we hit the breakpoint already set in that location.

pkg/terminal/command.go

@@ -1412,7 +1412,9 @@ func (c *Commands) cont(t *Term, ctx callContext, args string) error {
 	if args != "" {
 		tmp, err := setBreakpoint(t, ctx, false, args)
 		if err != nil {
-			return err
+			if !strings.Contains(err.Error(), "Breakpoint exists") {
+				return err
+			}
 		}
 		defer func() {
 			for _, bp := range tmp {