[PlaygroundLogger] When unwrapping optionals, don't propagate the type name.

Since the point is to log it as if it weren't an optional, we shouldn't propagate the type name (which references the fact that it's an optional).

Author: cwakamo

PlaygroundLogger/PlaygroundLogger/LogEntry+Reflection.swift

@@ -77,7 +77,7 @@ extension LogEntry {
 
                 if mirror.displayStyle == .optional && mirror.children.count == 1 {
                     // If the mirror displays as an Optional and has exactly one child, then we want to unwrap the optionality and generate a log entry for the child.
-                    self = try .init(describing: mirror.children.first!.value, name: name, typeName: typeName, summary: nil, policy: policy, currentDepth: currentDepth)
+                    self = try .init(describing: mirror.children.first!.value, name: name, typeName: nil, summary: nil, policy: policy, currentDepth: currentDepth)
                 }
                 else {
                     // Otherwise, we want to generate a log entry with the structure from the mirror.