remove unnecessary import and rename some clashing test classes

Author: pjfanning

src/main/scala/com/fasterxml/jackson/module/scala/introspect/BeanDescriptor.scala

@@ -1,5 +1,3 @@
 package com.fasterxml.jackson.module.scala.introspect
 
-import scala.language.existentials
-
-case class BeanDescriptor(beanType: Class[_], properties: Seq[PropertyDescriptor])
+case class BeanDescriptor(beanType: Class[_], properties: Seq[PropertyDescriptor])

src/test/scala-2.+/com/fasterxml/jackson/module/scala/ScalaObjectMapperTest.scala

@@ -6,7 +6,7 @@ import com.fasterxml.jackson.databind.DatabindException
 import com.fasterxml.jackson.databind.annotation.JsonDeserialize
 import com.fasterxml.jackson.databind.exc.InvalidFormatException
 import com.fasterxml.jackson.databind.json.JsonMapper
-import com.fasterxml.jackson.module.scala.deser.OptionDeserializerTest.{Foo, Wrapper}
+import com.fasterxml.jackson.module.scala.deser.OptionDeserializerTest.{Foo, TWrapper}
 
 import java.io.{ByteArrayInputStream, File, InputStreamReader}
 import java.nio.charset.StandardCharsets
@@ -282,7 +282,7 @@ class ScalaObjectMapperTest extends JacksonTest {
 
   it should "deserialize a type param wrapped option" in {
     val json: String = """{"t": {"bar": "baz"}}"""
-    val result = mapper.readValue[Wrapper[Option[Foo]]](json)
+    val result = mapper.readValue[TWrapper[Option[Foo]]](json)
     result.t.get.isInstanceOf[Foo] should be(true)
   }
 

src/test/scala/com/fasterxml/jackson/module/scala/ClassTagExtensionsTest.scala

@@ -5,7 +5,7 @@ import com.fasterxml.jackson.core.TreeNode
 import com.fasterxml.jackson.databind.annotation.JsonDeserialize
 import com.fasterxml.jackson.databind.exc.InvalidFormatException
 import com.fasterxml.jackson.databind.{DatabindException, ObjectMapper}
-import com.fasterxml.jackson.module.scala.deser.OptionDeserializerTest.{Foo, Wrapper}
+import com.fasterxml.jackson.module.scala.deser.OptionDeserializerTest.{Foo, TWrapper}
 
 import java.io.{ByteArrayInputStream, File, InputStreamReader}
 import java.nio.charset.StandardCharsets
@@ -255,7 +255,7 @@ class ClassTagExtensionsTest extends JacksonTest {
 
   it should "deserialize a type param wrapped option" in {
     val json: String = """{"t": {"bar": "baz"}}"""
-    val result = mapper.readValue[Wrapper[Option[Foo]]](json)
+    val result = mapper.readValue[TWrapper[Option[Foo]]](json)
     result.t.get.isInstanceOf[Foo] should be(true)
   }
 

src/test/scala/com/fasterxml/jackson/module/scala/Qux.scala

@@ -1,8 +1,8 @@
 package com.fasterxml.jackson.module.scala
 
-object Wrapper {
+object FooBazWrapper {
   object Foo {
     class Baz(val num: Int)
   }
 }
-class Qux(val qux: Wrapper.Foo.Baz)
+class Qux(val qux: FooBazWrapper.Foo.Baz)

src/test/scala/com/fasterxml/jackson/module/scala/deser/OptionDeserializerTest.scala

@@ -34,7 +34,7 @@ object OptionDeserializerTest {
   }
 
   case class Foo(bar: String)
-  case class Wrapper[T](t: T)
+  case class TWrapper[T](t: T)
 
   trait Marker
   case class AMarker(a: Int) extends Marker
@@ -89,7 +89,7 @@ class OptionDeserializerTest extends DeserializerTest {
 
   it should "deserialize a type param wrapped option" in {
     val json: String = """{"t": {"bar": "baz"}}"""
-    val result = deserialize(json, new TypeReference[Wrapper[Option[Foo]]] {})
+    val result = deserialize(json, new TypeReference[TWrapper[Option[Foo]]] {})
     result.t.get.isInstanceOf[Foo] should be(true)
   }