Introduce experimental kotlin.concurrent.Volatile annotation KT-55268, KT-55609

Use this annotation in tests to ensure it works the same at least on JVM

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

@@ -1,9 +1,10 @@
-// FIR_IDENTICAL
 // !DIAGNOSTICS: -UNUSED_ANONYMOUS_PARAMETER
-import kotlin.jvm.Volatile
+import kotlin.jvm.Volatile as JvmVolatile
+import kotlin.concurrent.Volatile
 import kotlin.properties.Delegates
 
-class My {
+@OptIn(ExperimentalStdlibApi::class)
+class ConcurrentVolatile {
     <!VOLATILE_ON_VALUE!>@Volatile<!> val x = 0
     // ok
     @Volatile var y = 1
@@ -11,4 +12,24 @@ class My {
     <!VOLATILE_ON_DELEGATE!>@delegate:Volatile<!> var z: String by Delegates.observable("?") { prop, old, new -> old.hashCode() }
 
     <!VOLATILE_ON_VALUE!>@field:Volatile<!> val w = 2
+
+    <!WRONG_ANNOTATION_TARGET!>@Volatile<!>
+    var noBacking: String
+        get() = ""
+        set(value) {}
+}
+
+class JvmVolatile {
+    <!VOLATILE_ON_VALUE!>@JvmVolatile<!> val x = 0
+    // ok
+    @JvmVolatile var y = 1
+
+    <!VOLATILE_ON_DELEGATE!>@delegate:JvmVolatile<!> var z: String by Delegates.observable("?") { prop, old, new -> old.hashCode() }
+
+    <!VOLATILE_ON_VALUE!>@field:JvmVolatile<!> val w = 2
+
+    <!WRONG_ANNOTATION_TARGET!>@JvmVolatile<!>
+    var noBacking: String
+        get() = ""
+        set(value) {}
 }