Migrate Vector128 from kotlin.native to kotlinx.cinterop #KT-58402

Make kotlin.native.Vector128 a typealias for kotlinx.cinterop.Vector128
Choose source compatibility over binary compatibility.

kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanFqNames.kt

@@ -10,7 +10,6 @@ import org.jetbrains.kotlin.name.Name
 
 internal const val NATIVE_PTR_NAME = "NativePtr"
 internal const val NON_NULL_NATIVE_PTR_NAME = "NonNullNativePtr"
-internal const val VECTOR128 = "Vector128"
 internal const val IMMUTABLE_BLOB_OF = "immutableBlobOf"
 
 object KonanFqNames {
@@ -20,7 +19,7 @@ object KonanFqNames {
     val internalPackageName = FqName("kotlin.native.internal")
     val nativePtr = internalPackageName.child(Name.identifier(NATIVE_PTR_NAME)).toUnsafe()
     val nonNullNativePtr = internalPackageName.child(Name.identifier(NON_NULL_NATIVE_PTR_NAME)).toUnsafe()
-    val Vector128 = packageName.child(Name.identifier(VECTOR128))
+    val Vector128 = FqName("kotlinx.cinterop.Vector128")
     val throws = FqName("kotlin.Throws")
     val cancellationException = FqName("kotlin.coroutines.cancellation.CancellationException")
     val threadLocal = FqName("kotlin.native.concurrent.ThreadLocal")

kotlin-native/backend.native/tests/interop/basics/vectors.kt

@@ -1,6 +1,7 @@
 @file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class, kotlin.experimental.ExperimentalNativeApi::class)
 
 import kotlinx.cinterop.*
+import kotlinx.cinterop.vectorOf
 import kotlin.native.*
 import kotlin.test.*
 import cvectors.*

kotlin-native/backend.native/tests/runtime/basic/simd.kt

@@ -7,6 +7,8 @@
 package runtime.basic.simd
 
 import kotlin.test.*
+import kotlinx.cinterop.Vector128
+import kotlinx.cinterop.vectorOf
 
 
 @Test fun runTest() {