No serialization for "external public inline" functions.

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/descriptors/DescriptorUtils.kt

@@ -295,4 +295,9 @@ internal fun DeclarationDescriptor.getMemberScope(): MemberScope {
         return containingScope
 }
 
+// It is possible to declare "external inline fun",
+// but it doesn't have much sence for native, 
+// since externals don't have IR bodies.
+internal val FunctionDescriptor.needsInlining: Boolean 
+    get() = (this.isInline && !this.isExternal)
 

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

@@ -19,6 +19,7 @@ package org.jetbrains.kotlin.backend.konan.lower
 import org.jetbrains.kotlin.backend.common.DeepCopyIrTreeWithDescriptors
 import org.jetbrains.kotlin.backend.konan.Context
 import org.jetbrains.kotlin.backend.konan.descriptors.isFunctionInvoke
+import org.jetbrains.kotlin.backend.konan.descriptors.needsInlining
 import org.jetbrains.kotlin.backend.konan.ir.DeserializerDriver
 import org.jetbrains.kotlin.backend.konan.ir.IrInlineFunctionBody
 import org.jetbrains.kotlin.descriptors.FunctionDescriptor
@@ -89,7 +90,7 @@ internal class FunctionInlining(val context: Context): IrElementTransformerVoid(
         val irCall = super.visitCall(expression) as IrCall
 
         val functionDescriptor = irCall.descriptor as FunctionDescriptor
-        if (functionDescriptor.isInline)  return inlineFunction(irCall)                     // Return newly created IrInlineBody instead of IrCall.
+        if (functionDescriptor.needsInlining) return inlineFunction(irCall)                     // Return newly created IrInlineBody instead of IrCall.
 
         return irCall
     }

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/serialization/KonanSerializerExtension.kt

@@ -18,6 +18,7 @@ package org.jetbrains.kotlin.backend.konan.serialization
 
 import org.jetbrains.kotlin.backend.konan.Context
 import org.jetbrains.kotlin.backend.konan.descriptors.getKonanInternalClass
+import org.jetbrains.kotlin.backend.konan.descriptors.needsInlining
 import org.jetbrains.kotlin.descriptors.PropertyDescriptor
 import org.jetbrains.kotlin.descriptors.SourceElement
 import org.jetbrains.kotlin.descriptors.annotations.AnnotationDescriptorImpl
@@ -107,8 +108,7 @@ internal class KonanSerializerExtension(val context: Context, val util: KonanSer
         val parentIndex = descriptor.parentFqNameIndex()
         proto.setExtension(KonanLinkData.functionParent, parentIndex)
   
-        if (descriptor.isInline()) {
+        if (descriptor.needsInlining) {
-
             val encodedIR: String = IrSerializer( context, 
                 inlineDescriptorTable, stringTable, util, descriptor)
                     .serializeInlineBody()

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/serialization/SerializerVisitor.kt

@@ -29,6 +29,7 @@ import org.jetbrains.kotlin.ir.visitors.acceptChildrenVoid
 import org.jetbrains.kotlin.ir.visitors.acceptVoid
 import org.jetbrains.kotlin.backend.konan.descriptors.EmptyDescriptorVisitorVoid
 import org.jetbrains.kotlin.backend.konan.descriptors.DeepVisitor
+import org.jetbrains.kotlin.backend.konan.descriptors.needsInlining
 import org.jetbrains.kotlin.backend.konan.serialization.*
 import org.jetbrains.kotlin.backend.konan.llvm.base64Encode
 import org.jetbrains.kotlin.backend.konan.llvm.base64Decode
@@ -43,7 +44,7 @@ internal class DeserializerDriver(val context: Context) {
     val descriptorIndex = IrDeserializationDescriptorIndex(context.irBuiltIns) 
 
     internal fun deserializeInlineBody(descriptor: FunctionDescriptor): IrDeclaration? {
-        if (!descriptor.isInline()) return null
+        if (!descriptor.needsInlining) return null
 
         if (descriptor !is DeserializedSimpleFunctionDescriptor) {
             return null