fix for tests in angular repo (#1179)

JiaLiPassion · vikerman · commit fd069db3b9f2 · 2019-01-22T10:46:04.000-08:00
diff --git a/lib/browser/register-element.ts b/lib/browser/register-element.ts
@@ -26,7 +26,7 @@ function patchCallbacks(target: any, targetName: string, method: string, callbac
           if (descriptor && descriptor.value) {
             descriptor.value = wrapWithCurrentZone(descriptor.value, source);
             _redefineProperty(opts.prototype, callback, descriptor);
-          } else {
+          } else if (prototype[callback]) {
             prototype[callback] = wrapWithCurrentZone(prototype[callback], source);
           }
         } else if (prototype[callback]) {

Original file line number	Diff line number	Diff line change
`@@ -26,7 +26,7 @@ function patchCallbacks(target: any, targetName: string, method: string, callbac`
`26`	`26`	`if (descriptor && descriptor.value) {`
`27`	`27`	`descriptor.value = wrapWithCurrentZone(descriptor.value, source);`
`28`	`28`	`_redefineProperty(opts.prototype, callback, descriptor);`
`29`		`- } else {`
	`29`	`+ } else if (prototype[callback]) {`
`30`	`30`	`prototype[callback] = wrapWithCurrentZone(prototype[callback], source);`
`31`	`31`	`}`
`32`	`32`	`} else if (prototype[callback]) {`