Implement option class inheritance

For now multiple, non-virtual inheritance is supported. An option class
can now also be declared abstract using the class c = 0 {...}; syntax.
New option, --exclude-base, controls whether base class information is
present in usage and documentation.

1 files changed, 17 insertions, 3 deletions

diff --git a/tests/parser/test-003.cli b/tests/parser/test-003.cli
index bfd8c72..2920b16 100644
--- a/tests/parser/test-003.cli
+++ b/tests/parser/test-003.cli
@@ -1,9 +1,23 @@
-// class-def
+// class-def, inheritance-spec, abstract-spec
 //
 class c1
 {
 };
 
-class c2
+class c2 = 0
 {
-};
\ No newline at end of file
+};
+
+class c3: c1, ::c2
+{
+};
+
+namespace n1
+{
+  class c {};
+}
+
+class c4: n1::c = 0
+{
+};
+