[bug] test cases can end up in the wrong test suite

[onqtam]

A test case can end up in the wrong test suite because of a function being marked as inline instead of static - consider the following code:

// a.cpp
#include <doctest.h>
TEST_SUITE("some test suite") {
    TEST_CASE("aaa") { CHECK(0); }
}

// b.cpp
#include <doctest.h>
TEST_SUITE("test suite in  b.cpp") {
    TEST_CASE("bbb") { CHECK(0); }
}

// main.cpp
#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
#include <doctest.h>

When these 3 files are built and linked there will be 2 test cases registered, but both will be in the same test suite.

Caught this while reviewing my slides for CppCon 2017!!!

[onqtam]

darn - smart commits dont work!!!