Avoid going twice through the binary-vs-ascii distinction in basicNext:

In other words, stay within the layer of "basic" functions that do not
do the character conversion.

Author: j4yk

src/FS-AnsiStreams.package/FSReadStream.class/instance/basicNext..st

@@ -1,3 +1,3 @@
 accessing - multibyte support
 basicNext: count
-	^ self nextInto: ((isBinary ifTrue: ByteArray ifFalse: ByteString) new: count)
+	^ self basicNextInto: (self collectionSpecies new: count)

src/FS-AnsiStreams.package/FSReadStream.class/methodProperties.json

@@ -4,7 +4,7 @@
 	"instance" : {
 		"atEnd" : "jr 4/13/2017 15:46",
 		"basicNext" : "jr 4/13/2017 15:39",
-		"basicNext:" : "jr 12/13/2016 19:44",
+		"basicNext:" : "jr 11/19/2021 22:09",
 		"basicNext:into:" : "jr 4/13/2017 15:39",
 		"basicNextInto:" : "jr 4/13/2017 15:39",
 		"isRead" : "CamilloBruni 8/14/2011 15:28",