clang-tidy: Apply modernize-use-using everywhere (#6453)

src/core/AudioEngine.cpp

@@ -64,9 +64,7 @@
 namespace lmms
 {
 
-
-typedef LocklessList<PlayHandle *>::Element LocklessListElement;
-
+using LocklessListElement = LocklessList<PlayHandle*>::Element;
 
 static thread_local bool s_renderingThread;
 

src/core/BandLimitedWave.cpp

@@ -30,7 +30,7 @@
 namespace lmms
 {
 
-WaveMipMap BandLimitedWave::s_waveforms[4] = {  };
+std::array<WaveMipMap, BandLimitedWave::Waveforms::NumBLWaveforms> BandLimitedWave::s_waveforms = {  };
 bool BandLimitedWave::s_wavesGenerated = false;
 QString BandLimitedWave::s_wavetableDir = "";
 

src/core/Oscillator.cpp

@@ -234,7 +234,7 @@ void Oscillator::generateWaveTables()
 	// Generate tables for simple shaped (constructed by summing sine waves).
 	// Start from the table that contains the least number of bands, and re-use each table in the following
 	// iteration, adding more bands in each step and avoiding repeated computation of earlier bands.
-	typedef void (*generator_t)(int, sample_t*, int);
+	using generator_t = void (*)(int, sample_t*, int);
 	auto simpleGen = [](WaveShapes shape, generator_t generator)
 	{
 		const int shapeID = shape - FirstWaveShapeTable;

src/gui/clips/ClipView.cpp

@@ -538,7 +538,7 @@ DataFile ClipView::createClipDataFiles(
 	DataFile dataFile( DataFile::DragNDropData );
 	QDomElement clipParent = dataFile.createElement("clips");
 
-	typedef QVector<ClipView *> clipViewVector;
+	using clipViewVector = QVector<ClipView*>;
 	for( clipViewVector::const_iterator it = clipViews.begin();
 			it != clipViews.end(); ++it )
 	{

src/gui/editors/PianoRoll.cpp

@@ -77,7 +77,7 @@ namespace lmms
 {
 
 
-typedef AutomationClip::timeMap timeMap;
+using timeMap = AutomationClip::timeMap;
 
 
 namespace gui

src/tracks/InstrumentTrack.cpp

@@ -922,7 +922,7 @@ void InstrumentTrack::loadTrackSpecificSettings( const QDomElement & thisElement
 			}
 			else if(node.nodeName() == "instrument")
 			{
-				typedef Plugin::Descriptor::SubPluginFeatures::Key PluginKey;
+				using PluginKey = Plugin::Descriptor::SubPluginFeatures::Key;
 				PluginKey key(node.toElement().elementsByTagName("key").item(0).toElement());
 
 				if (reuseInstrument)