[DNM] Do an experiment for deep recursion of JSON.

Package.swift

@@ -145,9 +145,6 @@ let package = Package(
                 "TestSupport",
                 "FoundationEssentials"
             ],
-            resources: [
-                .copy("Resources")
-            ],
             swiftSettings: availabilityMacros + concurrencyChecking
         ),
 
@@ -175,15 +172,6 @@ let package = Package(
             ] + availabilityMacros + concurrencyChecking
         ),
 
-        .testTarget(
-            name: "FoundationInternationalizationTests",
-            dependencies: [
-                "TestSupport",
-                "FoundationInternationalization",
-            ],
-            swiftSettings: availabilityMacros + concurrencyChecking
-        ),
-
         // FoundationMacros
         .macro(
             name: "FoundationMacros",
@@ -202,18 +190,3 @@ let package = Package(
         ),
     ]
 )
-
-// https://github.com/apple/swift-package-manager/issues/7174
-// Test macro targets result in multiple definitions of `main` on Windows.
-#if !os(Windows)
-package.targets.append(contentsOf: [
-    .testTarget(
-        name: "FoundationMacrosTests",
-        dependencies: [
-            "FoundationMacros",
-            "TestSupport"
-        ],
-        swiftSettings: availabilityMacros + concurrencyChecking
-    )
-])
-#endif

Sources/FoundationEssentials/JSON/JSONScanner.swift

@@ -261,6 +261,8 @@ extension JSONMap.Value {
 
 
 internal struct JSONScanner {
+    internal static let maximumRecursionDepth = JSONWriter.maximumRecursionDepth
+
     let options: Options
     var reader: DocumentReader
     var depth: Int = 0
@@ -412,7 +414,7 @@ internal struct JSONScanner {
     mutating func scanArray() throws {
         let firstChar = reader.read()
         precondition(firstChar == ._openbracket)
-        guard self.depth < 512 else {
+        guard self.depth < Self.maximumRecursionDepth else {
             throw JSONError.tooManyNestedArraysOrDictionaries(location: reader.sourceLocation(atOffset: 1))
         }
         self.depth &+= 1
@@ -470,7 +472,7 @@ internal struct JSONScanner {
     mutating func scanObject() throws {
         let firstChar = self.reader.read()
         precondition(firstChar == ._openbrace)
-        guard self.depth < 512 else {
+        guard self.depth < Self.maximumRecursionDepth else {
             throw JSONError.tooManyNestedArraysOrDictionaries(location: reader.sourceLocation(atOffset: -1))
         }
         try scanObject(withoutBraces: false)

Sources/FoundationEssentials/JSON/JSONWriter.swift

@@ -13,7 +13,7 @@
 internal struct JSONWriter {
 
     // Structures with container nesting deeper than this limit are not valid.
-    private static let maximumRecursionDepth = 512
+    internal static let maximumRecursionDepth = 512
 
     private var indent = 0
     private let pretty: Bool