[Native] Move addTopLevelInitializer from IrUtils2

This function is actually used only in `InteropLowering` and it
is too specific to be included into utils.

kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/InteropLowering.kt

@@ -27,17 +27,16 @@ import org.jetbrains.kotlin.ir.IrStatement
 import org.jetbrains.kotlin.ir.ObsoleteDescriptorBasedAPI
 import org.jetbrains.kotlin.ir.builders.*
 import org.jetbrains.kotlin.ir.declarations.*
+import org.jetbrains.kotlin.ir.declarations.impl.IrFieldImpl
 import org.jetbrains.kotlin.ir.declarations.impl.IrFunctionImpl
 import org.jetbrains.kotlin.ir.declarations.impl.IrValueParameterImpl
 import org.jetbrains.kotlin.ir.expressions.*
-import org.jetbrains.kotlin.ir.expressions.impl.IrConstImpl
+import org.jetbrains.kotlin.ir.expressions.impl.*
-import org.jetbrains.kotlin.ir.expressions.impl.IrDelegatingConstructorCallImpl
-import org.jetbrains.kotlin.ir.expressions.impl.IrFunctionReferenceImpl
-import org.jetbrains.kotlin.ir.expressions.impl.IrReturnImpl
 import org.jetbrains.kotlin.ir.util.toIrConst
 import org.jetbrains.kotlin.ir.symbols.IrClassSymbol
 import org.jetbrains.kotlin.ir.symbols.IrFunctionSymbol
 import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
+import org.jetbrains.kotlin.ir.symbols.impl.IrFieldSymbolImpl
 import org.jetbrains.kotlin.ir.symbols.impl.IrSimpleFunctionSymbolImpl
 import org.jetbrains.kotlin.ir.symbols.impl.IrValueParameterSymbolImpl
 import org.jetbrains.kotlin.ir.types.*
@@ -149,6 +148,8 @@ private class InteropLoweringPart1(val generationState: NativeGenerationState) :
     private val eagerTopLevelInitializers = mutableListOf<IrExpression>()
     private val newTopLevelDeclarations = mutableListOf<IrDeclaration>()
 
+    private var topLevelInitializersCounter = 0
+
     override val irFile: IrFile
         get() = currentFile
 
@@ -168,6 +169,31 @@ private class InteropLoweringPart1(val generationState: NativeGenerationState) :
         newTopLevelDeclarations.clear()
     }
 
+    private fun IrFile.addTopLevelInitializer(expression: IrExpression, context: KonanBackendContext, threadLocal: Boolean, eager: Boolean) {
+        val irField = IrFieldImpl(
+                expression.startOffset, expression.endOffset,
+                IrDeclarationOrigin.DEFINED,
+                IrFieldSymbolImpl(),
+                "topLevelInitializer${topLevelInitializersCounter++}".synthesizedName,
+                expression.type,
+                DescriptorVisibilities.PRIVATE,
+                isFinal = true,
+                isExternal = false,
+                isStatic = true,
+        ).apply {
+            expression.setDeclarationsParent(this)
+
+            if (threadLocal)
+                annotations += buildSimpleAnnotation(context.irBuiltIns, startOffset, endOffset, context.ir.symbols.threadLocal.owner)
+
+            if (eager)
+                annotations += buildSimpleAnnotation(context.irBuiltIns, startOffset, endOffset, context.ir.symbols.eagerInitialization.owner)
+
+            initializer = IrExpressionBodyImpl(startOffset, endOffset, expression)
+        }
+        addChild(irField)
+    }
+
     private fun IrBuilderWithScope.callAlloc(classPtr: IrExpression): IrExpression =
             irCall(symbols.interopAllocObjCObject).apply {
                 putValueArgument(0, classPtr)

kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/ir/util/IrUtils2.kt

@@ -5,59 +5,16 @@
 
 package org.jetbrains.kotlin.ir.util
 
-import org.jetbrains.kotlin.backend.konan.KonanBackendContext
-import org.jetbrains.kotlin.backend.konan.descriptors.synthesizedName
-import org.jetbrains.kotlin.backend.konan.ir.buildSimpleAnnotation
-import org.jetbrains.kotlin.descriptors.DescriptorVisibilities
-import org.jetbrains.kotlin.descriptors.impl.PackageFragmentDescriptorImpl
-import org.jetbrains.kotlin.ir.IrFileEntry
-import org.jetbrains.kotlin.ir.ObsoleteDescriptorBasedAPI
 import org.jetbrains.kotlin.ir.builders.IrBuilderWithScope
 import org.jetbrains.kotlin.ir.builders.declarations.buildVariable
 import org.jetbrains.kotlin.ir.builders.parent
-import org.jetbrains.kotlin.ir.declarations.*
+import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
-import org.jetbrains.kotlin.ir.declarations.impl.IrFieldImpl
+import org.jetbrains.kotlin.ir.declarations.IrField
-import org.jetbrains.kotlin.ir.declarations.impl.IrFileImpl
 import org.jetbrains.kotlin.ir.expressions.IrConst
 import org.jetbrains.kotlin.ir.expressions.IrConstantValue
-import org.jetbrains.kotlin.ir.expressions.IrExpression
-import org.jetbrains.kotlin.ir.expressions.IrFunctionAccessExpression
 import org.jetbrains.kotlin.ir.expressions.impl.IrCatchImpl
 import org.jetbrains.kotlin.ir.expressions.impl.IrConstImpl
-import org.jetbrains.kotlin.ir.expressions.impl.IrExpressionBodyImpl
-import org.jetbrains.kotlin.ir.symbols.impl.IrFieldSymbolImpl
-import org.jetbrains.kotlin.ir.types.makeNullable
-import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.name.Name
-import org.jetbrains.kotlin.resolve.calls.checkers.isRestrictsSuspensionReceiver
-import org.jetbrains.kotlin.resolve.scopes.MemberScope
-
-private var topLevelInitializersCounter = 0
-
-internal fun IrFile.addTopLevelInitializer(expression: IrExpression, context: KonanBackendContext, threadLocal: Boolean, eager: Boolean) {
-    val irField = IrFieldImpl(
-            expression.startOffset, expression.endOffset,
-            IrDeclarationOrigin.DEFINED,
-            IrFieldSymbolImpl(),
-            "topLevelInitializer${topLevelInitializersCounter++}".synthesizedName,
-            expression.type,
-            DescriptorVisibilities.PRIVATE,
-            isFinal = true,
-            isExternal = false,
-            isStatic = true,
-    ).apply {
-        expression.setDeclarationsParent(this)
-
-        if (threadLocal)
-            annotations += buildSimpleAnnotation(context.irBuiltIns, startOffset, endOffset, context.ir.symbols.threadLocal.owner)
-
-        if (eager)
-            annotations += buildSimpleAnnotation(context.irBuiltIns, startOffset, endOffset, context.ir.symbols.eagerInitialization.owner)
-
-        initializer = IrExpressionBodyImpl(startOffset, endOffset, expression)
-    }
-    addChild(irField)
-}
 
 fun IrBuilderWithScope.irCatch() =
         IrCatchImpl(