Set harness status to error if there is an uncaught exception.
Fix typo
Merge pull request #36 from jgraham/idlharness_some_any

Fix typo
Update and improve the test for the length property of interface objects.
Merge pull request #40 from Ms2ger/idlharness-ctor-length

Update and improve the test for the length property of interface objects. r=jgraham