Fix JUT_ASSERT and several other macros (#2711)

* Fix JUT_ASSERT to be a nested define

* Switch names that appear in asserts to be constants instead of defines

* Replace `0` in asserts with `NULL` or `FALSE`

* Fix fpclassify

* Fix ARRAY_SIZE

* Use G_CM3D_F_INF

* More fixes for fpclassify

* Remove FLOAT_LABEL

* Remove incorrect FLAG_ON macro

* Remove UNK_BSS macro

* Silence clangd unused header warning for PCH

include/JSystem/JAudio2/JASTrack.h

@@ -17,8 +17,6 @@ namespace JASDsp {
     extern const u32 FILTER_MODE_IIR;
 };
 
-#define MAX_CHILDREN 16
-
 /**
  * @ingroup jsystem-jaudio
  * 
@@ -126,6 +124,8 @@ struct JASTrack : public JASPoolAllocObject_MultiThreaded<JASTrack> {
     static JASDefaultBankTable sDefaultBankTable;
     static TList sTrackList;
 
+    static const int MAX_CHILDREN = 16;
+
     JASSeqCtrl* getSeqCtrl() { return &mSeqCtrl; }
     u16 getPort(u32 param_0) const { return mTrackPort.get(param_0); }
     void setPort(u32 param_0, u16 param_1) { mTrackPort.set(param_0, param_1); }