Fix: there is not always an MCClassTraitDefinition in a package for e…

…very trait

For example, my FileSystem-Git package only has a MCClassTraitDefinition
for TGitActiveUnitOfWorkDuringTest, but not for TGitVisitor. A difference
is that TGitActiveUnitOfWorkDuringTest itself uses another trait, and that
also affects the class trait composition of TGitActiveUnitOfWorkDuringTest.
TGitVisitor does not use another thread, and its class trait composition is
empty. Apparently that is not worth a class trait definition...

src/Squot.package/SquotCypressCodeSerializer.class/instance/writeDiff..st

@@ -53,8 +53,9 @@ writeDiff: aSquotArtifactDiff
 				[classTrait := classTraits at: each className.
 				(newDefinitions includes: classTrait) ifFalse: [missingClassTraits add: classTrait]]].
 	(missingClassifiers select: [:each | each isTraitDefinition])
-		do: [:each | | classTrait | classTrait := classTraits at: each className.
-			(newDefinitions includes: classTrait) ifFalse: [missingClassTraits add: classTrait]].
+		do: [:each | | classTrait | classTrait := classTraits at: each className ifAbsent: [].
+			(classTrait notNil and: [(newDefinitions includes: classTrait) not])
+				ifTrue: [missingClassTraits add: classTrait]].
 	cypressWriter writeDefinitions: newDefinitions, missingClassifiers, missingClassTraits.
 	"Fix up methodProperties.json files (they now only include the methods that were newly written)."
 	allMethods := (newDefinitions select: [:each | each isMethodDefinition]) collect: [:each | each description -> each] as: Dictionary.

src/Squot.package/SquotCypressCodeSerializer.class/methodProperties.json

@@ -22,7 +22,7 @@
 		"write:" : "jr 5/9/2017 18:24",
 		"writeClass:" : "jr 9/3/2020 22:48",
 		"writeDefinitions:" : "jr 1/29/2017 21:08",
-		"writeDiff:" : "jr 8/7/2022 23:33",
+		"writeDiff:" : "jr 8/8/2022 19:29",
 		"writeMCSnapshot:forPackageNamed:from:" : "jr 3/16/2019 23:35",
 		"writePackage:" : "jr 9/3/2020 22:47",
 		"writePropertiesIfExists" : "jr 9/3/2020 22:47" } }