FIR analysis API: fix rendering of Java-based types

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/renderer/ConeTypeIdeRenderer.kt

@@ -13,7 +13,6 @@ import org.jetbrains.kotlin.fir.containingClassForLocal
 import org.jetbrains.kotlin.fir.declarations.*
 import org.jetbrains.kotlin.fir.declarations.utils.isInner
 import org.jetbrains.kotlin.fir.declarations.utils.isLocal
-import org.jetbrains.kotlin.fir.expressions.FirAnnotation
 import org.jetbrains.kotlin.fir.renderWithType
 import org.jetbrains.kotlin.fir.resolve.diagnostics.ConeUnresolvedError
 import org.jetbrains.kotlin.fir.resolve.toFirRegularClass
@@ -22,7 +21,6 @@ import org.jetbrains.kotlin.fir.symbols.impl.FirRegularClassSymbol
 import org.jetbrains.kotlin.fir.symbols.impl.LookupTagInternals
 import org.jetbrains.kotlin.fir.types.*
 import org.jetbrains.kotlin.name.FqName
-import org.jetbrains.kotlin.name.StandardClassIds
 import org.jetbrains.kotlin.renderer.render
 import org.jetbrains.kotlin.utils.addToStdlib.applyIf
 
@@ -257,6 +255,14 @@ internal class ConeTypeIdeRenderer(
                     (designation[index + 1] as? FirRegularClass)?.isInner == true
         }
 
+        val classParentFqName = classId.relativeClassName.parent()
+        if (!classParentFqName.isRoot && designation.size == 1) {
+            // This code is added for a case we can't build designation (e.g. nested Java class),
+            // but still wish to render full class name
+            append(classParentFqName)
+            append(".")
+        }
+
         designation.filterIsInstance<FirRegularClass>().forEachIndexed { index, currentClass ->
             if (index != 0) append(".")
             append(currentClass.name)

analysis/analysis-api/testData/referenceResolve/ReferenceToSam.txt

@@ -1,2 +1,2 @@
 Resolved to:
-0: (in JavaTest.SomeJavaClass) open fun setListener(listener: SAMInterface!)
+0: (in JavaTest.SomeJavaClass) open fun setListener(listener: JavaTest.SAMInterface!)