When assigning into an |nsCOMPtr| using |=| and the user didn't specify | do_QueryInterface| or provide another |nsCOMPtr| of the same type, a test is performed after the assignment to ensure that no query was actually needed. But there is another way to assign into an |nsCOMPtr|, you can pass it as a `result parameter' with |getter_AddRefs()|. In a debug build, |getter_AddRefs()| should perform the same test. I currently can't enable this test because the assert fires twice for each page load. The underlying bug is that proxies don't correctly support | QueryInterface|. <dougt@netscape.com> has code to fix this, when he checks that in, the test can be enabled.

Alright. <dougt@netscape.com> checked in his fixes that allow me to turn this on, so I'm turning it on now.

Marking Verified per eng comment.s