Migrate swift-foundation to swift-testing

Package.swift

@@ -96,9 +96,9 @@ let package = Package(
         .target(
             name: "TestSupport",
             dependencies: [
-                "FoundationEssentials",
-                "FoundationInternationalization",
+                "FoundationEssentials"
             ],
+            path: "Tests/TestSupport",
             cSettings: wasiLibcCSettings,
             swiftSettings: availabilityMacros + concurrencyChecking
         ),
@@ -144,8 +144,8 @@ let package = Package(
         .testTarget(
             name: "FoundationEssentialsTests",
             dependencies: [
-                "TestSupport",
-                "FoundationEssentials"
+                "FoundationEssentials",
+                "TestSupport"
             ],
             resources: [
                 .copy("Resources")
@@ -181,7 +181,10 @@ let package = Package(
             name: "FoundationInternationalizationTests",
             dependencies: [
                 "TestSupport",
-                "FoundationInternationalization",
+                "FoundationInternationalization"
+            ],
+            resources: [
+                .copy("Resources")
             ],
             swiftSettings: availabilityMacros + concurrencyChecking
         ),
@@ -212,8 +215,7 @@ package.targets.append(contentsOf: [
     .testTarget(
         name: "FoundationMacrosTests",
         dependencies: [
-            "FoundationMacros",
-            "TestSupport"
+            "FoundationMacros"
         ],
         swiftSettings: availabilityMacros + concurrencyChecking
     )

Sources/FoundationEssentials/TimeZone/TimeZone.swift

@@ -67,15 +67,6 @@ public struct TimeZone : Hashable, Equatable, Sendable {
         _tz = cached
     }
 
-    internal init?(name: String) {
-        // Try the cache first
-        if let cached = TimeZoneCache.cache.fixed(name) {
-            _tz = cached
-        } else {
-            return nil
-        }
-    }
-
     /// Returns a time zone identified by a given abbreviation.
     ///
     /// In general, you are discouraged from using abbreviations except for unique instances such as "GMT". Time Zone abbreviations are not standardized and so a given abbreviation may have multiple meanings--for example, "EST" refers to Eastern Time in both the United States and Australia

Sources/FoundationInternationalization/TimeZone/TimeZone_ObjC.swift

@@ -23,7 +23,7 @@ extension NSTimeZone {
     static func _timeZoneWith(name: String, data: Data?) -> _NSSwiftTimeZone? {
         if let data {
             // We don't cache data-based TimeZones
-            guard let tz = TimeZone(name: name) else {
+            guard let tz = TimeZone(identifier: name) else {
                 return nil
             }
             return _NSSwiftTimeZone(timeZone: tz, data: data)