[AA LC] Generate backing field for inline classes

compiler/testData/asJava/ultraLightClasses/inlineClasses.fir.java

@@ -0,0 +1,37 @@
+public final class UInt /* UInt*/ {
+  private final int value;
+
+}
+
+public enum Foo /* Foo*/ {
+  ;
+
+  private final int x;
+
+  @org.jetbrains.annotations.NotNull()
+  public static Foo valueOf(@org.jetbrains.annotations.NotNull() java.lang.String) throws java.lang.IllegalArgumentException;//  valueOf(java.lang.String)
+
+  @org.jetbrains.annotations.NotNull()
+  public static Foo[] values();//  values()
+
+  public final int getX();//  getX()
+
+}
+
+public final class InlinedDelegate /* InlinedDelegate*/<T>  {
+  private T node;
+
+  public final T getNode();//  getNode()
+
+}
+
+public final class InlineInheritance /* InlineInheritance*/ {
+  private final int v;
+
+  public final int getV();//  getV()
+
+  public int getX();//  getX()
+
+  public int y();//  y()
+
+}