Uninline more printing ops

Author: airspeedswift

stdlib/public/core/OutputStream.swift

@@ -267,11 +267,9 @@ public protocol CustomDebugStringConvertible {
 // Default (ad-hoc) printing
 //===----------------------------------------------------------------------===//
 
-@usableFromInline // FIXME(sil-serialize-all)
 @_silgen_name("swift_EnumCaseName")
 internal func _getEnumCaseName<T>(_ value: T) -> UnsafePointer<CChar>?
 
-@usableFromInline // FIXME(sil-serialize-all)
 @_silgen_name("swift_OpaqueSummary")
 internal func _opaqueSummary(_ metadata: Any.Type) -> UnsafePointer<CChar>?