remove public access modifiers from package symbols

Author: matthewbastien

Sources/DocCDocumentation/DocCSymbolLink.swift

@@ -79,7 +79,7 @@ package struct DocCSymbolLink: Sendable {
 }
 
 extension DocCSymbolLink: Equatable {
-  public static func == (lhs: DocCSymbolLink, rhs: DocCSymbolLink) -> Bool {
+  package static func == (lhs: DocCSymbolLink, rhs: DocCSymbolLink) -> Bool {
     guard lhs.components.count == rhs.components.count else {
       return false
     }
@@ -100,7 +100,7 @@ extension DocCSymbolLink: Equatable {
 }
 
 extension DocCSymbolLink: Hashable {
-  public func hash(into hasher: inout Hasher) {
+  package func hash(into hasher: inout Hasher) {
     for component in components {
       component.asLinkComponentString.hash(into: &hasher)
     }

Sources/DocCDocumentation/DoccDocumentationError.swift

@@ -13,12 +13,12 @@
 import Foundation
 package import LanguageServerProtocol
 
-package enum DocCDocumentationError {
+package enum DocCDocumentationError: LocalizedError {
   case noDocumentation
   case indexNotAvailable
   case symbolNotFound(String)
 
-  public var message: String {
+  var errorDescription: String? {
     switch self {
     case .noDocumentation:
       return "No documentation could be rendered for the position in this document"
@@ -32,6 +32,6 @@ package enum DocCDocumentationError {
 
 package extension ResponseError {
   static func requestFailed(doccDocumentationError: DocCDocumentationError) -> ResponseError {
-    return ResponseError.requestFailed(doccDocumentationError.message)
+    return ResponseError.requestFailed(doccDocumentationError.localizedDescription)
   }
 }

Tests/SourceKitLSPTests/DoccDocumentationTests.swift

@@ -780,7 +780,7 @@ fileprivate func renderDocumentation(
         }
       case .error(let error):
         XCTFail(
-          "expected error \(error.message), but received a render node at position \(marker)",
+          "expected error \(error.localizedDescription), but received a render node at position \(marker)",
           file: file,
           line: line
         )
@@ -803,8 +803,8 @@ fileprivate func renderDocumentation(
         )
         XCTAssertEqual(
           error.message,
-          expectedError.message,
-          "expected an error with message \(expectedError.message) at position \(marker)",
+          expectedError.localizedDescription,
+          "expected an error with message \(expectedError.localizedDescription) at position \(marker)",
           file: file,
           line: line
         )