Brought back the @Used annotation processing.

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/CodeGenerator.kt

@@ -69,6 +69,10 @@ internal inline fun<R> generateFunction(codegen: CodeGenerator,
             startLocation,
             endLocation,
             descriptor), code)
+
+    if (descriptor.usedAnnotation) {
+        codegen.context.llvm.usedFunctions.add(llvmFunction)
+    }
 }
 
 

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/IrToBitcode.kt

@@ -2465,4 +2465,4 @@ internal class CodeGeneratorVisitor(val context: Context, val lifetimes: Map<IrE
 
 internal data class LocationInfo(val scope:DIScopeOpaqueRef?, val line:Int, val column:Int)
 
-private fun IrFunction.hasNotReceiver() = this.extensionReceiverParameter == null && this.dispatchReceiverParameter == null
+private fun IrFunction.hasNotReceiver() = this.extensionReceiverParameter == null && this.dispatchReceiverParameter == null