Subdirectories:
abi Tests for ABI compatibility -- mangling, object layout, etc.
eh Tests for exception handling.
ext Tests for GNU language extensions.
inherit Tests for inheritance -- virtual functions, multiple inheritance, etc.
init Tests for initialization semantics, constructors/destructors, etc.
lookup Tests for lookup semantics, namespaces, etc.
overload Tests for overload resolution and conversions.
rtti Tests for run-time type identification (typeid, dynamic_cast, etc.)
template Tests for templates.
warn Tests for compiler warnings.
other Tests that don't fit into one of the other categories.
special Tests that need custom expect code to run them; see special/ecos.exp
for an example.
