Make k.c.Volatile since 1.9 in JVM and Common KT-55268, KT-55609

Leave it experimental since 1.8 for K/Native.

compiler/testData/codegen/box/annotations/jvmAnnotationFlags.kt

@@ -1,5 +1,6 @@
 // TARGET_BACKEND: JVM
 
+// !API_VERSION: 1.9
 // WITH_STDLIB
 // FULL_JDK
 

compiler/testData/codegen/bytecodeText/noFlagAnnotations.kt

@@ -1,3 +1,4 @@
+// !API_VERSION: 1.9
 @Volatile var vol = 1
 @OptIn(ExperimentalStdlibApi::class)
 @kotlin.concurrent.Volatile var vol2 = 1

compiler/testData/diagnostics/testsWithStdLib/annotations/Volatile.kt

@@ -1,5 +1,6 @@
 // FIR_IDENTICAL
 // !DIAGNOSTICS: -UNUSED_ANONYMOUS_PARAMETER
+// !API_VERSION: 1.9
 import kotlin.jvm.Volatile as JvmVolatile
 import kotlin.concurrent.Volatile
 import kotlin.properties.Delegates

libraries/stdlib/jvm/src/kotlin/concurrent/Volatile.kt

@@ -14,6 +14,7 @@ package kotlin.concurrent
  * For example, if the property getter or setter make several operations with the backing field,
  * a _property_ operation, i.e. reading or setting it through these accessors, is not guaranteed to be atomic.
  */
-@SinceKotlin("1.8")
+@Suppress("NEWER_VERSION_IN_SINCE_KOTLIN")
+@SinceKotlin("1.9")
 @ExperimentalStdlibApi
 public actual typealias Volatile = kotlin.jvm.Volatile

libraries/stdlib/src/kotlin/concurrent/Volatile.kt

@@ -24,7 +24,8 @@ import kotlin.internal.RequireKotlinVersionKind
 @Retention(AnnotationRetention.SOURCE)
 @MustBeDocumented
 @OptionalExpectation
-@SinceKotlin("1.8")
+@Suppress("NEWER_VERSION_IN_SINCE_KOTLIN")
+@SinceKotlin("1.9")
 @RequireKotlin(version = "1.8.20", versionKind = RequireKotlinVersionKind.COMPILER_VERSION)
 @ExperimentalStdlibApi
 public expect annotation class Volatile()