IDL compiler: rebase bindings tests following r160807

Fix for new tests, since test output changed by:
IDL compiler: remove empty statement from void methods
https://codereview.chromium.org/49163006/

BUG=239771
NOTRY=true
TBR=haraken

Review URL: https://codereview.chromium.org/50553003

git-svn-id: svn://svn.chromium.org/blink/trunk@160820 bbb929c8-8fbe-4397-9dbb-9b2b20218538