Support swift-syntax from 600.0.0-latest (#165)

The Xcode 16 beta generates macro projects using these swift-syntax
snapshots. Luckily things seem to be backwards compatible, so we can
expand our supported range.

Package.resolved

@@ -1,12 +1,13 @@
 {
+ "originHash" : "78b7c73291f799120ba374036606e29d3001200653d8758d8fb44a5efbba75ad",
  "pins" : [
  {
  "identity" : "swift-argument-parser",
  "kind" : "remoteSourceControl",
  "location" : "https://github.com/apple/swift-argument-parser",
  "state" : {
- "revision" : "c8ed701b513cf5177118a175d85fbbbcd707ab41",
- "version" : "1.3.0"
+ "revision" : "0fbc8848e389af3bb55c182bc19ca9d5dc2f255b",
+ "version" : "1.4.0"
  }
  },
  {
@@ -41,35 +42,35 @@
  "kind" : "remoteSourceControl",
  "location" : "https://github.com/pointfreeco/swift-macro-testing",
  "state" : {
- "revision" : "90e38eec4bf661ec0da1bbfd3ec507d0f0c05310",
- "version" : "0.3.0"
+ "revision" : "5c4a1b9d7c23cd5c08ea50677d8e89080365cb00",
+ "version" : "0.4.0"
  }
  },
  {
  "identity" : "swift-snapshot-testing",
  "kind" : "remoteSourceControl",
  "location" : "https://github.com/pointfreeco/swift-snapshot-testing",
  "state" : {
- "revision" : "5b0c434778f2c1a4c9b5ebdb8682b28e84dd69bd",
- "version" : "1.15.4"
+ "revision" : "625ccca8570773dd84a34ee51a81aa2bc5a4f97a",
+ "version" : "1.16.0"
  }
  },
  {
  "identity" : "swift-syntax",
  "kind" : "remoteSourceControl",
  "location" : "https://github.com/apple/swift-syntax",
  "state" : {
- "revision" : "08a2f0a9a30e0f705f79c9cfaca1f68b71bdc775",
- "version" : "510.0.0"
+ "revision" : "303e5c5c36d6a558407d364878df131c3546fad8",
+ "version" : "510.0.2"
  }
  },
  {
  "identity" : "xctest-dynamic-overlay",
  "kind" : "remoteSourceControl",
  "location" : "https://github.com/pointfreeco/xctest-dynamic-overlay",
  "state" : {
- "revision" : "b58e6627149808b40634c4552fcf2f44d0b3ca87",
- "version" : "1.1.0"
+ "revision" : "6f30bdba373bbd7fbfe241dddd732651f2fbd1e2",
+ "version" : "1.1.2"
  }
  }
  ],

Package@swift-5.9.swift

@@ -19,7 +19,7 @@ let package = Package(
  ],
  dependencies: [
  .package(url: "https://github.com/google/swift-benchmark", from: "0.1.0"),
- .package(url: "https://github.com/apple/swift-syntax", "509.0.0"..<"511.0.0"),
+ .package(url: "https://github.com/apple/swift-syntax", "509.0.0"..<"601.0.0"),
  .package(url: "https://github.com/pointfreeco/swift-macro-testing", from: "0.2.0"),
  .package(url: "https://github.com/pointfreeco/xctest-dynamic-overlay", from: "1.0.0"),
  ],