FIR renderer: extract separate ConeTypeRenderer

compiler/tests-common/tests/org/jetbrains/kotlin/fir/AbstractFirDiagnosticTest.kt

@@ -103,7 +103,7 @@ abstract class AbstractKtDiagnosticsTest : AbstractFirBaseDiagnosticsTest() {
     }
 
     fun checkFir(testDataFile: File, firFiles: List<FirFile>) {
-        val firFileDump = StringBuilder().apply { firFiles.forEach { it.accept(FirRenderer(this), null) } }.toString()
+        val firFileDump = StringBuilder().apply { firFiles.forEach { it.accept(FirRenderer(this).Visitor(), null) } }.toString()
         val expectedPath = testDataFile.absolutePath.replace(".kt", ".txt")
         KotlinTestUtils.assertEqualsToFile(
             File(expectedPath),

compiler/tests-common/tests/org/jetbrains/kotlin/fir/FirResolveBench.kt

@@ -5,9 +5,7 @@
 package org.jetbrains.kotlin.fir
 
 import com.intellij.openapi.fileEditor.FileDocumentManager
-import com.intellij.openapi.util.io.FileUtil
 import com.intellij.openapi.util.text.StringUtil
-import com.intellij.openapi.vfs.CharsetToolkit
 import com.intellij.psi.PsiElement
 import org.jetbrains.kotlin.KtIoFileSourceFile
 import org.jetbrains.kotlin.fir.builder.RawFirBuilder
@@ -339,7 +337,7 @@ class FirResolveBench(val withProgress: Boolean, val listener: BenchListener? =
                                 return
                             }
                             val psi = resolvedTypeRef.psi ?: return
-                            val problem = "${resolvedTypeRef::class.simpleName} -> ${type::class.simpleName}: ${type.render()}"
+                            val problem = "${resolvedTypeRef::class.simpleName} -> ${type::class.simpleName}: ${type.renderForDebugging()}"
                             reportProblem(problem, psi)
                         }
                     }