Expose invocation reporting mode

reporter_report_test.go

@@ -12,7 +12,7 @@ import (
 func TestReporterReportQuietAndClosed(t *testing.T) {
 	var out bytes.Buffer
 	reporter := newReporter(Streams{Out: &out})
-	reporter.state.mode = modeQuiet
+	reporter.state.mode = ReportingModeQuiet
 	err := reporter.Report(Report{Value: make(chan int)})
 	if err == nil {
 		t.Fatal("expected serialization error")