Value classes: Add JvmInlineValueClasses language feature

compiler/testData/diagnostics/tests/valueClasses/basicValueClassDeclarationDisabled.kt

@@ -13,4 +13,4 @@ annotation class JvmInline
 <!VALUE_CLASS_WITHOUT_JVM_INLINE_ANNOTATION, WRONG_MODIFIER_TARGET!>value<!> enum class InlineEnum
 
 @JvmInline
-<!UNSUPPORTED_FEATURE!>value<!> class NotVal(<!INLINE_CLASS_CONSTRUCTOR_NOT_FINAL_READ_ONLY_PARAMETER!>x: Int<!>)
+<!UNSUPPORTED_FEATURE!>value<!> class NotVal(x: Int)

compiler/testData/diagnostics/testsWithJvmBackend/noWarningInLV1_5.kt

@@ -0,0 +1,9 @@
+// !LANGUAGE: +JvmInlineValueClasses
+// WITH_RUNTIME
+
+package kotlin.jvm
+
+annotation class JvmInline
+
+@JvmInline
+value class VC(val a: Any)

compiler/testData/diagnostics/testsWithJvmBackend/noWarningInLV1_5.txt

@@ -0,0 +1,23 @@
+package
+
+package kotlin {
+
+    package kotlin.jvm {
+
+        public final annotation class JvmInline : kotlin.Annotation {
+            public constructor JvmInline()
+            public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+            public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+            public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+        }
+
+        @kotlin.jvm.JvmInline public final value class VC {
+            public constructor VC(/*0*/ a: kotlin.Any)
+            public final val a: kotlin.Any
+            public open override /*1*/ /*synthesized*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+            public open override /*1*/ /*synthesized*/ fun hashCode(): kotlin.Int
+            public open override /*1*/ /*synthesized*/ fun toString(): kotlin.String
+        }
+    }
+}
+