Replace appendln with appendLine in project

core/descriptors/src/org/jetbrains/kotlin/renderer/DescriptorRendererImpl.kt

@@ -415,7 +415,7 @@ internal class DescriptorRendererImpl(
             ) {
                 append(renderAnnotation(annotation, target))
                 if (eachAnnotationOnNewLine) {
-                    appendln()
+                    appendLine()
                 } else {
                     append(" ")
                 }

core/descriptors/src/org/jetbrains/kotlin/types/checker/utils.kt

@@ -86,7 +86,7 @@ fun findCorrespondingSupertype(
 private fun KotlinType.approximate() = approximateCapturedTypes(this).upper
 
 private fun TypeConstructor.debugInfo() = buildString {
-    operator fun String.unaryPlus() = appendln(this)
+    operator fun String.unaryPlus() = appendLine(this)
 
     + "type: ${this@debugInfo}"
     + "hashCode: ${this@debugInfo.hashCode()}"