Issues with generation of code coverage using lcov/gcov

When using C++ templates, I am seeing an issue where code coverage report fails to show coverage for functions defined as templates. For e.g. if you compile, run and generate the code in attachment using `./generate.sh`, the code coverage for `HelloAnother.inl` shows as zero percentage.

Rerun the same test by changing the Test Case in `main.cpp` to simply use `int main(int argc, char * argv[])` and then rerun `./generate.sh`. You will notice that code coverage now becomes 100%.

[test-profiling.zip](https://github.com/philsquared/Catch/files/378812/test-profiling.zip)