[CppCodeGen] Passing reference of structure to native method doesn't work

[kbaladurin]

Following example isn't compiled in cppgen mode:

// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

using System;
using System.Runtime.InteropServices;

namespace Hello
{
    internal class Program
    {
        internal struct Structure
        {
            public string field;
        }

        [DllImport("libtest", EntryPoint = "func")]
        internal static extern int Func(ref Structure s);

        private static void Main(string[] args)
        {
            Structure s;
            s.field = "123";

            Func(ref s);
        }
    }
}

$ ./tests/runtest.sh -test Hello
/media/kbaladurin/data/dotnet/forked/corert_1/corert/tests/../Tools/msbuild.sh /ds /m /p:IlcPath=/media/kbaladurin/data/dotnet/forked/corert_1/corert/tests/../bin/Linux.x64.Debug /p:Configuration=Debug /p:Platform=x64 /p:OSGroup=Linux /p:RepoLocalBuild=true /p:FrameworkLibPath=/media/kbaladurin/data/dotnet/forked/corert_1/corert/tests/../bin/Linux.x64.Debug/lib /p:FrameworkObjPath=/media/kbaladurin/data/dotnet/forked/corert_1/corert/tests/../bin/obj/Linux.x64.Debug/Framework /p:NativeCodeGen=cpp /media/kbaladurin/data/dotnet/forked/corert_1/corert/tests/src/Simple/Hello/Hello.csproj
Microsoft (R) Build Engine version 15.8.166+gd4e8d81a88 for .NET Core
Copyright (C) Microsoft Corporation. All rights reserved.

  /usr/bin/clang
  Generating native code
  Assertion Failed
  
     at ILCompiler.DependencyAnalysis.NodeFactory.NecessaryTypeSymbol(TypeDesc type) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.Compiler/src/Compiler/DependencyAnalysis/NodeFactory.cs:line 511
     at ILCompiler.DependencyAnalysis.EETypeNode.CheckCanGenerateEEType(NodeFactory factory, TypeDesc type) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.Compiler/src/Compiler/DependencyAnalysis/EETypeNode.cs:line 1162
     at ILCompiler.DependencyAnalysis.EETypeNode..ctor(NodeFactory factory, TypeDesc type) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.Compiler/src/Compiler/DependencyAnalysis/EETypeNode.cs:line 79
     at ILCompiler.DependencyAnalysis.NodeFactory.<CreateNodeCaches>b__36_0(TypeDesc type) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.Compiler/src/Compiler/DependencyAnalysis/NodeFactory.cs:line 175
     at System.Collections.Concurrent.ConcurrentDictionary`2.GetOrAdd(TKey key, Func`2 valueFactory)
     at ILCompiler.DependencyAnalysis.NodeFactory.NodeCache`2.GetOrAdd(TKey key) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.Compiler/src/Compiler/DependencyAnalysis/NodeFactory.cs:line 150
     at ILCompiler.DependencyAnalysis.NodeFactory.NecessaryTypeSymbol(TypeDesc type) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.Compiler/src/Compiler/DependencyAnalysis/NodeFactory.cs:line 513
     at Internal.IL.ILImporter.AddTypeDependency(TypeDesc type, Boolean constructed) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.CppCodeGen/src/CppCodeGen/ILToCppImporter.cs:line 2704
     at Internal.IL.ILImporter.AddTypeReference(TypeDesc type, Boolean constructed) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.CppCodeGen/src/CppCodeGen/ILToCppImporter.cs:line 2683
     at Internal.IL.ILImporter.GetSignatureTypeNameAndAddReference(TypeDesc type, Boolean constructed) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.CppCodeGen/src/CppCodeGen/ILToCppImporter.cs:line 2748
     at Internal.IL.ILImporter.GetStackValueKindCPPTypeName(StackValueKind kind, TypeDesc type) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.CppCodeGen/src/CppCodeGen/ILToCppImporter.cs:line 240
     at Internal.IL.ILImporter.PushTemp(StackEntry entry) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.CppCodeGen/src/CppCodeGen/ILToCppImporter.cs:line 287
     at Internal.IL.ILImporter.PushTemp(StackValueKind kind, TypeDesc type) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.CppCodeGen/src/CppCodeGen/ILToCppImporter.cs:line 274
     at Internal.IL.ILImporter.ImportAddressOfVar(Int32 index, Boolean argument) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.CppCodeGen/src/CppCodeGen/ILToCppImporter.cs:line 861
     at Internal.IL.ILImporter.ImportBasicBlock(BasicBlock basicBlock) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/Common/src/TypeSystem/IL/ILImporter.cs:line 395
     at Internal.IL.ILImporter.ImportBasicBlocks() in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/Common/src/TypeSystem/IL/ILImporter.cs:line 327
     at Internal.IL.ILImporter.Compile(CppMethodCodeNode methodCodeNodeNeedingCode) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.CppCodeGen/src/CppCodeGen/ILToCppImporter.cs:line 651
     at ILCompiler.CppCodeGen.CppWriter.CompileMethod(CppMethodCodeNode methodCodeNodeNeedingCode) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.CppCodeGen/src/CppCodeGen/CppWriter.cs:line 449
     at ILCompiler.CppCodegenCompilation.ComputeDependencyNodeDependencies(List`1 obj) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.CppCodeGen/src/Compiler/CppCodegenCompilation.cs:line 58
     at ILCompiler.DependencyAnalysisFramework.DependencyAnalyzer`2.ComputeDependencies(List`1 deferredStaticDependencies) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.DependencyAnalysisFramework/src/DependencyAnalyzer.cs:line 139
     at ILCompiler.DependencyAnalysisFramework.DependencyAnalyzer`2.ComputeMarkedNodes() in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.DependencyAnalysisFramework/src/DependencyAnalyzer.cs:line 262
     at ILCompiler.CppCodegenCompilation.CompileInternal(String outputFile, ObjectDumper dumper) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.CppCodeGen/src/Compiler/CppCodegenCompilation.cs:line 47
     at ILCompiler.Compilation.ILCompiler.ICompilation.Compile(String outputFile, ObjectDumper dumper) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler.Compiler/src/Compiler/Compilation.cs:line 333
     at ILCompiler.Program.Run(String[] args) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler/src/Program.cs:line 514
     at ILCompiler.Program.Main(String[] args) in /media/kbaladurin/data/dotnet/forked/corert_1/corert/src/ILCompiler/src/Program.cs:line 670
  Aborted (core dumped)

Compiler crashes when we try to add dependency to [S.P.CompilerGenerated]Internal.CompilerGenerated.__NativeType__Structure& type.

[kbaladurin]

@iarischenko @alpencolt @sergign60