Avoid mem leaks in counting includer test
Avoid mem leaks in counting includer test

This is caught by leak checks in Clang 3.6 address sanitizer.

dneto0/shaderc,antiagainst/shaderc,antiagainst/shaderc,dneto0/shaderc,dneto0/shaderc,dneto0/shaderc,antiagainst/shaderc,antiagainst/shaderc