[lldb][swig] Support SBFileSpec::GetPath

Author: kusmour

lldb/bindings/python/python-typemaps.swig

@@ -233,6 +233,11 @@ AND call SWIG_fail at the same time, because it will result in a double free.
 }
 
 
+// For lldb::SBFileSpec::GetPath
+%typemap(in) (char *dst_path, size_t dst_len) = (char *dst_or_null, size_t dst_len);
+%typemap(argout) (char *dst_path, size_t dst_len) = (char *dst_or_null, size_t dst_len);
+
+
 // typemap for an outgoing buffer
 // See also SBEvent::SBEvent(uint32_t event, const char *cstr, uint32_t cstr_len).
 // Ditto for SBProcess::PutSTDIN(const char *src, size_t src_len).

lldb/test/API/python_api/default-constructor/sb_filespec.py

@@ -10,5 +10,5 @@ def fuzz_obj(obj):
     obj.ResolveExecutableLocation()
     obj.GetFilename()
     obj.GetDirectory()
-    obj.GetPath(None, 0)
+    obj.GetPath(0)
     obj.GetDescription(lldb.SBStream())