New J2K: Fix JKClassSymbol's name printing in a case of nested class

j2k/newSrc/org/jetbrains/kotlin/j2k/NewCodeBuilder.kt

@@ -554,7 +554,7 @@ class NewCodeBuilder {
         private fun renderType(type: JKType) {
             if (type is JKNoTypeImpl) return
             when (type) {
-                is JKClassType -> type.classReference.fqName?.let { printer.printWithNoIndent(FqName(it).shortName().asString()) }
+                is JKClassType -> printer.printWithNoIndent(type.classReference.displayName())
                 is JKUnresolvedClassType -> printer.printWithNoIndent(type.name)
                 is JKContextType -> return
                 is JKStarProjectionType ->
@@ -587,7 +587,7 @@ class NewCodeBuilder {
             if (javaNewExpression.isAnonymousClass()) {
                 printer.printWithNoIndent("object : ")
             }
-            printer.printWithNoIndent(javaNewExpression.classSymbol.name)
+            printer.printWithNoIndent(javaNewExpression.classSymbol.displayName())
             javaNewExpression.typeArgumentList.accept(this)
             if (javaNewExpression.constructorIsPresent()) {
                 printer.par(ROUND) {
@@ -753,7 +753,7 @@ class NewCodeBuilder {
 
         override fun visitAnnotation(annotation: JKAnnotation) {
             printer.printWithNoIndent("@")
-            printer.printWithNoIndent(annotation.classSymbol.name)
+            printer.printWithNoIndent(annotation.classSymbol.displayName())
             if (annotation.arguments.expressions.isNotEmpty()) {
                 printer.par {
                     annotation.arguments.accept(this)

j2k/newSrc/org/jetbrains/kotlin/j2k/tree/impl/symbols.kt

@@ -79,6 +79,22 @@ class JKMultiverseKtClassSymbol(override val target: KtClassOrObject) : JKClassS
 
 }
 
+fun JKClassSymbol.displayName() =
+    when (this) {
+        is JKUniverseClassSymbol ->
+            target.psi<PsiClass>()
+                ?.let { it.nameWithOuterClasses() }
+                ?: name
+        is JKMultiverseClassSymbol -> target.nameWithOuterClasses()
+        else -> name
+    }
+
+fun PsiClass.nameWithOuterClasses() =
+    generateSequence(this) { it.containingClass }
+        .toList()
+        .reversed()
+        .joinToString(separator = ".") { it.name!! }
+
 class JKUniverseMethodSymbol(private val symbolProvider: JKSymbolProvider) : JKMethodSymbol, JKUniverseSymbol<JKMethod> {
     override val receiverType: JKType?
         get() = (target.parent as? JKClass)?.let {