[Swift export] Move swift-export-standalone tests

Move them under `nativeCompilerTest` for the sake of unification, and
running under proper CI configuration.

build.gradle.kts

@@ -813,6 +813,7 @@ tasks {
     register("nativeCompilerTest") {
         dependsOn(":native:native.tests:test")
         dependsOn(":native:objcexport-header-generator:check")
+        dependsOn(":native:swift:swift-export-standalone:test")
         dependsOn(":kotlin-atomicfu-compiler-plugin:nativeTest")
     }
 

native/swift/build.gradle.kts

@@ -7,7 +7,4 @@ tasks.register("sirAllTests") {
         ":native:swift:sir-compiler-bridge:test",
         ":native:swift:sir-printer:test"
     )
-    if (kotlinBuildProperties.isKotlinNativeEnabled) {
-        dependsOn(":native:swift:swift-export-standalone:test")
-    }
 }