Merge pull request #1435 from bnbarham/add-ignore

Add missing CMakeLists.txt exclude

Author: bnbarham

Package.swift

@@ -135,6 +135,9 @@ let package = Package(
       name: "SwiftCompilerPluginMessageHandling",
       dependencies: [
         "SwiftSyntax", "SwiftParser", "SwiftDiagnostics", "SwiftSyntaxMacros", "SwiftOperators",
+      ],
+      exclude: [
+        "CMakeLists.txt"
       ]
     ),
     .target(