fix: More C++ support.

testtest.cpp

@@ -0,0 +1,12 @@
+#include "set.h"
+#include "set_asserts.h"
+
+NO_SETUP;
+
+NO_TEAR_DOWN;
+
+TEST(Basic) { ASSERT_EQ(1, 1); }
+
+SUIT(Basic) { ADD_TEST(Basic); }
+
+BUNDLE() { ADD_SUIT(Basic); }