[atomicfu-JVM] Preparation for commonization of JVM and K/N transformers

The following updates in the JVM/IR plugin were made:
* Lots of refactoring with preparation for K/N support: commonization of transformations.
* Improved error handling (checks for visibility constraints, appending message about usage constraints in case of an error).
* Explicit requirements for the visibility of atomic properties: to prevent leaking they should be private/internal or be members of private/internal classes.
* Fixed visibility of generated properties: volatile properties are always private and atomic updaters have the same visibility as the original atomic property.
* Volatile fields are generated from scratch and original atomic properties are removed.
* Delegated properties support is fixed (only declaration in the same scope is allowed).
* Non-inline atomic extensions are forbidden.
* For top-level atomics: only one wrapper class per file (with corresponding visibility) is generated.
* Bug fixes.

The corresponding tickets: 
https://github.com/Kotlin/kotlinx-atomicfu/issues/322
KT-60528



Merge-request: KT-MR-10579
Merged-by: Maria Sokolova <maria.sokolova@jetbrains.com>

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/builders/declarations/declarationBuilders.kt

@@ -139,6 +139,17 @@ inline fun IrProperty.addGetter(builder: IrFunctionBuilder.() -> Unit = {}): IrS
         }
     }
 
+inline fun IrProperty.addSetter(builder: IrFunctionBuilder.() -> Unit = {}): IrSimpleFunction =
+    IrFunctionBuilder().run {
+        name = Name.special("<set-${this@addSetter.name}>")
+        builder()
+        factory.buildFunction(this).also { setter ->
+            this@addSetter.setter = setter
+            setter.correspondingPropertySymbol = this@addSetter.symbol
+            setter.parent = this@addSetter.parent
+        }
+    }
+
 fun IrProperty.addDefaultGetter(parentClass: IrClass, builtIns: IrBuiltIns) {
     val field = backingField!!
     addGetter {