Revert memory leak commits

5f7001e: "Added a new branch"
01456ed: "Fixed a lot of memory leaks"
dac4493: "Fixed all remaining memory leaks that I could figure out"
0792db7: "Removed the smnew macro and the call to _CrtSetDbgFlag()"

Some of these caused destructor-time problems due to static initialization
order fiasco and related issues.  Notably, the program would no longer exit on
OSX and had to be killed.

There were probably legitimate fixes in here, but since these are monolithic
commits it's too much work to extract them now.  Let's reapply them
individually and in the forward direction.

src/TimingData.cpp

@@ -268,55 +268,28 @@ bool TimingData::IsFakeAtRow( int iNoteRow ) const
  *
  * Note that types whose SegmentEffectAreas are "Indefinite" are NULL here,
  * because they should never need to be used; we always have at least one such
- * segment in the TimingData, and if not, we'll crash anyway. -- vyhd
- *
- * I've modified the dummy segments a bit to use a static function trick to make
- * sure the objects gets destructed instead of leaking a bunch of pointers.
- */
-TimingSegment * GetDummyTimingSegment( TimingSegmentType tst )
+ * segment in the TimingData, and if not, we'll crash anyway. -- vyhd */
+static const TimingSegment* DummySegments[NUM_TimingSegmentType] =
 {
-	TimingSegment * result = NULL;
-
-	switch( tst )
-	{
-		case SEGMENT_STOP:
-		{
-			static StopSegment stopSegment;
-			result = &stopSegment;
-			break;
-		}
-
-		case SEGMENT_DELAY:
-		{
-			static DelaySegment delaySegment;
-			result = &delaySegment;
-			break;
-		}
-
-		case SEGMENT_WARP:
-		{
-			static WarpSegment warpSegment;
-			result = &warpSegment;
-			break;
-		}
-
-		case SEGMENT_FAKE:
-		{
-			static FakeSegment fakeSegment;
-			result = &fakeSegment;
-			break;
-		}
-	}
-
-	return result;
-}
+	NULL, // BPMSegment
+	new StopSegment,
+	new DelaySegment,
+	NULL, // TimeSignatureSegment
+	new WarpSegment,
+	NULL, // LabelSegment
+	NULL, // TickcountSegment
+	NULL, // ComboSegment
+	NULL, // SpeedSegment
+	NULL, // ScrollSegment
+	new FakeSegment
+};
 
 const TimingSegment* TimingData::GetSegmentAtRow( int iNoteRow, TimingSegmentType tst ) const
 {
 	const vector<TimingSegment*> &vSegments = GetTimingSegments(tst);
 
 	if( vSegments.empty() )
-		return GetDummyTimingSegment(tst);
+		return DummySegments[tst];
 
 	int index = GetSegmentIndexAtRow( tst, iNoteRow );
 	const TimingSegment *seg = vSegments[index];
@@ -335,7 +308,7 @@ const TimingSegment* TimingData::GetSegmentAtRow( int iNoteRow, TimingSegmentTyp
 			if( seg->GetRow() == iNoteRow )
 				return seg;
 			else
-				return GetDummyTimingSegment(tst);
+				return DummySegments[tst];
 		}
 	}