add bridgeOS encoding

Author: tayloraswift

Sources/Availability/Domains/Availability.PlatformDomain.swift

@@ -5,6 +5,7 @@ extension Availability
     @frozen public
     enum PlatformDomain:String, CaseIterable, Equatable, Hashable, Sendable
     {
+        case bridgeOS
         case iOS
         case macOS
         case macCatalyst
@@ -37,6 +38,7 @@ extension Availability.PlatformDomain:CustomStringConvertible
     {
         switch self
         {
+        case .bridgeOS:                         "bridgeOS"
         case .iOS:                              "iOS"
         case .macOS:                            "macOS"
         case .macCatalyst:                      "Mac Catalyst"

Sources/SymbolGraphs/Declarations/Availability.CodingKey.swift

@@ -27,6 +27,7 @@ extension Availability.CodingKey:RawRepresentable
         {
         case "s":   self.init(.agnostic(.swift))
         case "p":   self.init(.agnostic(.swiftPM))
+        case "b":   self.init(.platform(.bridgeOS))
         case "i":   self.init(.platform(.iOS))
         case "m":   self.init(.platform(.macOS))
         case "c":   self.init(.platform(.macCatalyst))
@@ -51,6 +52,7 @@ extension Availability.CodingKey:RawRepresentable
         {
         case .agnostic(.swift):                             "s"
         case .agnostic(.swiftPM):                           "p"
+        case .platform(.bridgeOS):                          "b"
         case .platform(.iOS):                               "i"
         case .platform(.macOS):                             "m"
         case .platform(.macCatalyst):                       "c"