Ignore generated methods for default arguments

[TimMoore]

When a method with default arguments has a name that matches JavaBeans property conventions, the generated method that computes the default argument expression is detected as a property.

[TimMoore]

This was discovered from this Stack Overflow question https://stackoverflow.com/q/73655638/29470

[TimMoore]

I don't know if this is really the best way to filter these methods out, but it's the best way I could find.

Based on the spec at https://docs.scala-lang.org/sips/named-and-default-arguments.html#default-arguments-1

[pjfanning]

thanks - probably the best way to go

[TimMoore]

I wrote this test-first. Here are the failures that result without the change to ScalaAnnotationIntrospectorModule:

[info] - should ignore a generated default argument method *** FAILED ***
[info]   [[Property 'value$default$1'; ctors: null, field(s): null, getter(s): [method com.fasterxml.jackson.module.scala.introspect.ScalaAnnotationIntrospectorTest$GeneratedDefaultArgumentClass#getValue$default$1()][visible=true,ignore=false,explicitName=false], setter(s): null]] was not empty (ScalaAnnotationIntrospectorTest.scala:250)
...
[info] - should not find properties for default arguments *** FAILED ***
[info]   "{["value$default$1":"default"]}" did not equal "{[]}" (CaseClassSerializerTest.scala:207)
[info]   Analysis:
[info]   "{["value$default$1":"default"]}" -> "{[]}"