Fix things that won't build if -DLMMS_DEBUG is in CXX_FLAGS.

src/core/EffectChain.cpp

@@ -221,7 +221,7 @@ bool EffectChain::processAudioBuffer( sampleFrame * _buf, const fpp_t _frames, b
 				it = m_effects.end()-1;
 				printf( "numerical overflow after processing "
 					"plugin \"%s\"\n", ( *it )->
-					publicName().toUtf8().constData() );
+					descriptor()->name);
 				break;
 			}
 		}

src/core/SampleRecordHandle.cpp

@@ -30,7 +30,9 @@
 #include "Pattern.h"
 #include "SampleBuffer.h"
 #include "SampleTrack.h"
-
+#ifdef LMMS_DEBUG
+#include <assert.h>
+#endif
 
 
 SampleRecordHandle::SampleRecordHandle( SampleTCO* tco ) :