Add more pos tests

compiler/src/dotty/tools/dotc/transform/CheckDollarInIdentifier.scala

@@ -47,6 +47,7 @@ class CheckDollarInIdentifier extends MiniPhase:
 
   private val allowedDefTermNames = List(
     nme.DOLLAR_NEW,
+    nme.ANON_FUN,
   ).map(_.toString)
 
   private def allowedTerms[T <: Tree](tree: T): List[String] =

tests/pos/i18234.scala

@@ -19,6 +19,10 @@ case class CaseClass(someField: Int) // error
 
 class GoodClass
 
+object GoodClass:
+  val companionObjectValue = 5
+end GoodClass
+
 class Class(
    var goodMember: Int,
 ):
@@ -35,4 +39,62 @@ trait GoodTrait
 class TestTraitUsage extends GoodTrait
 
 package GoodPackage:
-  val goodVal = 1
+  val goodVal = 1
+
+
+lazy val lazyVal = 23
+
+val listWithAnonymousFunc = List(1, 2, 3).map(_ * 2).map((num) => num + 1)
+
+object TestAnonymousClass:
+  trait SomeTrait:
+    def somefunc(): String
+
+  val anObject = new SomeTrait:
+    override def somefunc(): String = "hello"
+end TestAnonymousClass
+
+val partialFunc: PartialFunction[Int, Int] =
+  case x if x <= 0 => Math.abs(x)
+
+val anotherPartialFunc: PartialFunction[String, String] = { case x @ "abc" => x }
+
+object TestInline:
+  import scala.quoted.* // imports Quotes, Expr
+
+  inline val pi = 3.141592653589793
+
+  inline def power(inline x: Double, inline n: Int) =
+    ${ powerCode('x, 'n) }
+
+
+  def pow(x: Double, n: Int): Double =
+    if n == 0 then 1 else x * pow(x, n - 1)
+
+  def powerCode(
+                 x: Expr[Double],
+                 n: Expr[Int]
+               )(using Quotes): Expr[Double] =
+    val value: Double = pow(x.valueOrAbort, n.valueOrAbort)
+    Expr(value)
+
+end TestInline
+
+object TestGivens:
+  trait Showable[A]:
+    extension (a: A) def show: String
+  case class Person(firstName: String, lastName: String)
+  // anonymous given
+  given Showable[Person] with
+    extension (p: Person) def show: String =
+      s"${p.firstName} ${p.lastName}"
+  // named given
+  given caseClassShowable: Showable[CaseClass] with
+    extension (c: CaseClass) def show: String = s"number ${c.someField}"
+  def showMe[T: Showable](t: T) = t.show
+  showMe(Person("John", "Doe"))
+  showMe(CaseClass(42))
+
+  given Int = 42
+  def showUsing(using someNumber: Int) = CaseClass(someNumber)
+end TestGivens