Value classes: treat @JvmInline value classes as inline classes

Report error on value classes without @JvmInline annotation.
Do not check for @JvmInline annotation in value classes since
it breaks reflection.

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

@@ -0,0 +1,16 @@
+// !LANGUAGE: +InlineClasses
+// !DIAGNOSTICS: -UNUSED_VARIABLE
+// FIR_IDENTICAL
+
+package kotlin
+
+annotation class JvmInline
+
+@JvmInline
+value class Foo(val x: Int) {
+    init {}
+
+    init {
+        val f = 1
+    }
+}