[ObjCExport] Document getObjCClassOrProtocolName

^KT-65670 Fixed

native/objcexport-header-generator/impl/analysis-api/src/org/jetbrains/kotlin/objcexport/getObjCClassOrProtocolName.kt

@@ -10,6 +10,25 @@ import org.jetbrains.kotlin.analysis.api.symbols.*
 import org.jetbrains.kotlin.backend.konan.objcexport.ObjCExportClassOrProtocolName
 import org.jetbrains.kotlin.util.capitalizeDecapitalize.capitalizeAsciiOnly
 
+/**
+ * Constructs the name of the given [KtClassLikeSymbol] by composing
+ * ```
+ * {Current Framework Name}{Additional Module Prefix}{ObjC Class or Protocol Name}
+ *         (1)                      (2)                         (3)
+ * ```
+ *
+ * 1) Current Framework Name: See [KtObjCExportConfiguration.frameworkName]
+ * 2) Additional Module Prefix: Dependency modules that are not directly exported will add the prefix to distinguish from which
+ * dependency module a symbol came from. Note: This module name can be abbreviated e.g. `LongModuleName` will be `LMN`
+ * 3) ObjC Class or Protocol Name: This is either the name of the symbol, or the defined name in the `ObjCName` annotation
+ * (see [resolveObjCNameAnnotation]): e.g.
+ * ```
+ * @ObjCName("ObjCFoo")
+ * class Foo
+ * ```
+ * will use `ObjCFoo` instead of the class name `Foo`
+ *
+ */
 context(KtAnalysisSession, KtObjCExportSession)
 fun KtClassLikeSymbol.getObjCClassOrProtocolName(): ObjCExportClassOrProtocolName {
     val resolvedObjCNameAnnotation = resolveObjCNameAnnotation()