Prefer #if compiler over #if swift (#377)

* Prefer `#if compiler` over `#if swift`

* Use 'swift' check for KeyPath sendability feature

* bump

---------

Co-authored-by: Stephen Celis <[email protected]>

Author: jflan-dd

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
     strategy:
       matrix:
         config: ['debug', 'release']
-        xcode: ['16.2']
+        xcode: ['16.4']
     steps:
       - uses: actions/checkout@v4
       - name: Select Xcode ${{ matrix.xcode }}

Sources/Dependencies/WithDependencies.swift

@@ -143,7 +143,7 @@ public func withDependencies<R>(
   #endif
 }
 
-#if swift(>=6)
+#if compiler(>=6)
   /// Updates the current dependencies for the duration of an asynchronous operation.
   ///
   /// Any mutations made to ``DependencyValues`` inside `updateValuesForOperation` will be visible
@@ -314,7 +314,7 @@ public func withDependencies<Model: AnyObject, R>(
   )
 }
 
-#if swift(>=6)
+#if compiler(>=6)
   /// Updates the current dependencies for the duration of an asynchronous operation by taking the
   /// dependencies tied to a given object.
   ///

Sources/DependenciesTestSupport/TestTrait.swift

@@ -3,7 +3,7 @@
   import Dependencies
   import Testing
 
-  #if swift(>=6.1)
+  #if compiler(>=6.1)
     @_documentation(visibility: private)
     public struct _DependenciesTrait: TestScoping, TestTrait, SuiteTrait {
       let updateValues: @Sendable (inout DependencyValues) throws -> Void

Tests/DependenciesTests/PrepareDependenciesTests.swift

@@ -4,7 +4,7 @@
   import Testing
 
   @Suite struct PrepareDependenciesTests {
-    #if swift(>=6.1)
+    #if compiler(>=6.1)
       @Test(
         .serialized,
         .dependency(\.uuid, .incrementing),

Tests/DependenciesTests/RootResettingTests.swift

@@ -1,4 +1,4 @@
-#if swift(>=6.1) && canImport(Testing)
+#if compiler(>=6.1) && canImport(Testing)
   import Dependencies
   import Foundation
   import Testing

Tests/DependenciesTests/SwiftTestingTests.swift

@@ -6,7 +6,7 @@
   import Testing
 
   @Suite struct SwiftTestingTests {
-    #if swift(>=6.1)
+    #if compiler(>=6.1)
       @Test(.dependencies, .serialized, arguments: 1...5)
       func parameterizedCachePollution(_ argument: Int) {
         @Dependency(Client.self) var client