[FIR] Add proper rendering of FirJavaTypeRef

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/types/FirUserTypeRef.kt

@@ -19,6 +19,7 @@ abstract class FirUserTypeRef : FirTypeRefWithNullability() {
     abstract override val annotations: List<FirAnnotationCall>
     abstract override val isMarkedNullable: Boolean
     abstract val qualifier: List<FirQualifierPart>
+    abstract val customRenderer: Boolean
 
     override fun <R, D> accept(visitor: FirVisitor<R, D>, data: D): R = visitor.visitUserTypeRef(this, data)
 

compiler/fir/tree/src/org/jetbrains/kotlin/fir/FirRenderer.kt

@@ -947,6 +947,10 @@ class FirRenderer(builder: StringBuilder, private val mode: RenderMode = RenderM
 
     override fun visitUserTypeRef(userTypeRef: FirUserTypeRef) {
         userTypeRef.annotations.renderAnnotations()
+        if (userTypeRef.customRenderer) {
+            print(userTypeRef.toString())
+            return
+        }
         for ((index, qualifier) in userTypeRef.qualifier.withIndex()) {
             if (index != 0) {
                 print(".")

compiler/fir/tree/src/org/jetbrains/kotlin/fir/types/impl/FirUserTypeRefImpl.kt

@@ -21,6 +21,8 @@ class FirUserTypeRefImpl(
     override val qualifier: MutableList<FirQualifierPart>,
     override val annotations: MutableList<FirAnnotationCall>
 ) : FirUserTypeRef(), FirAnnotationContainer {
+    override val customRenderer: Boolean
+        get() = false
 
     override fun <R, D> acceptChildren(visitor: FirVisitor<R, D>, data: D) {
         for (part in qualifier) {

compiler/fir/tree/tree-generator/src/org/jetbrains/kotlin/fir/tree/generator/NodeConfigurator.kt

@@ -571,6 +571,7 @@ object NodeConfigurator : AbstractFieldConfigurator<FirTreeBuilder>(FirTreeBuild
 
         userTypeRef.configure {
             +fieldList("qualifier", firQualifierPartType)
+            +booleanField("customRenderer")
         }
 
         functionTypeRef.configure {