test: add disposable histogram test

test: add disposable histogram test · nodejs/node@5936cef

Original file line number	Diff line number	Diff line change
`@@ -97,6 +97,17 @@ const { inspect } = require('util');`
`97`	`97`	`}, 50);`
`98`	`98`	`}`
`99`	`99`
	`100`	`+{`
	`101`	`+// Tests that the ELD histogram is disposable`
	`102`	`+let histogram;`
	`103`	`+{`
	`104`	`+using hi = monitorEventLoopDelay();`
	`105`	`+histogram = hi;`
	`106`	`+}`
	`107`	`+// The histogram should already be disabled.`
	`108`	`+strictEqual(histogram.disable(), false);`
	`109`	`+}`
	`110`	`+`
`100`	`111`	`{`
`101`	`112`	`const h = createHistogram();`
`102`	`113`	`ok(inspect(h, { depth: null }).startsWith('Histogram'));`