CppEditor/CppTools: Tests: Fix potential race condition

...when updating the code model.

Change-Id: Ifc55b7d0bb795b9cfd72465990991bc2cc907846
Reviewed-by: Christian Stenger <christian.stenger@digia.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
Remove trailing comma in an enum

qmljsconstants.h(53): warning #271: trailing comma is nonstandard
[and many more]

Change-Id: I2224b7fe6ae1954b27d2b2bfebd469e1ca472f7b
Reviewed-by: Kurt Pattyn <pattyn.kurt@gmail.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>