Merge pull request #2311 from ahoppen/ahoppen/511-version-indicator

Add a `SwiftSyntax511` version indicator module

Author: ahoppen

Package.swift

@@ -172,7 +172,7 @@ let package = Package(
 
     .target(
       name: "SwiftSyntax",
-      dependencies: ["SwiftSyntax509", "SwiftSyntax510"],
+      dependencies: ["SwiftSyntax509", "SwiftSyntax510", "SwiftSyntax511"],
       exclude: ["CMakeLists.txt"],
       swiftSettings: swiftSyntaxSwiftSettings
     ),
@@ -195,6 +195,11 @@ let package = Package(
       dependencies: []
     ),
 
+    .target(
+      name: "SwiftSyntax511",
+      dependencies: []
+    ),
+
     // MARK: SwiftSyntaxBuilder
 
     .target(

Sources/SwiftSyntax511/Empty.swift

@@ -0,0 +1,3 @@
+// The SwiftSyntax511 module is intentionally empty.
+// It serves as an indicator which version of swift-syntax a package is building against.
+// See the 'Macro Versioning.md' document for more details.