Fix distinction of arg vals vs body vals

Author: MateuszKubuszok

chimney-macro-commons/src/main/scala-2/io/scalaland/chimney/internal/compiletime/datatypes/ProductTypesPlatform.scala

@@ -26,7 +26,7 @@ trait ProductTypesPlatform extends ProductTypes { this: DefinitionsPlatform =>
         field.isCaseAccessor || field.toString.startsWith("variable ") // align with Scala 3 (var -> case accessor)
 
       def isArgumentField(field: MethodSymbol): Boolean =
-        isCaseClassField(field) // TODO: other cases
+        isCaseClassField(field) || field.isParamAccessor
 
       // assuming isAccessor was tested earlier
       def isJavaGetter(getter: MethodSymbol): Boolean =

chimney-macro-commons/src/main/scala-3/io/scalaland/chimney/internal/compiletime/datatypes/ProductTypesPlatform.scala

@@ -93,10 +93,14 @@ trait ProductTypesPlatform extends ProductTypes { this: DefinitionsPlatform =>
             .map(_._1)
             .toList
           val caseFieldNames = caseFields.map(_.name.trim).toSet
+          val argumentFields = {
+            val fields = sym.declaredFields.map(_.name.trim).toSet
+            paramListsOf(A, sym.primaryConstructor).flatten.map(_.name.trim).filter(fields).toSet
+          }
 
           def isCaseFieldName(sym: Symbol) = caseFieldNames(sym.name.trim)
 
-          def isArgumentField(sym: Symbol) = isCaseFieldName(sym) // TODO: other cases
+          def isArgumentField(sym: Symbol) = isCaseFieldName(sym) || argumentFields(sym.name.trim)
 
           val accessorsAndGetters = sym.methodMembers
             .filterNot(_.paramSymss.exists(_.exists(_.isType))) // remove methods with type parameters