コンパイル結果がやべーやつ

Program.cs

using System;

namespace Sandbox
{
    class Program
    {
        static void Main(string[] args)
        {
            var x = 1;
            {
                var y = 2;
                {
                    var z = 3;
                    var func = (Action)(() => Console.WriteLine(x + y + z));
                    func.Invoke();
                }
            }
        }
    }
}

ReleaseBuild_dnSpy.txt

// Token: 0x02000002 RID: 2
.class private auto ansi beforefieldinit Sandbox.Program
    extends [System.Runtime]System.Object
{
    // Nested Types
    // Token: 0x02000003 RID: 3
    .class nested private auto ansi sealed beforefieldinit '<>c__DisplayClass0_0'
        extends [System.Runtime]System.Object
    {
        .custom instance void [System.Runtime]System.Runtime.CompilerServices.CompilerGeneratedAttribute::.ctor() = (
            01 00 00 00
        )
        // Fields
        // Token: 0x04000001 RID: 1
        .field public int32 x

        // Methods
        // Token: 0x06000003 RID: 3 RVA: 0x000020A9 File Offset: 0x000002A9
        .method public hidebysig specialname rtspecialname
            instance void .ctor () cil managed
        {
            // Header Size: 1 byte
            // Code Size: 7 (0x7) bytes
            .maxstack 8

            /* 0x000002AA 02           */ IL_0000: ldarg.0
            /* 0x000002AB 280E00000A   */ IL_0001: call      instance void [System.Runtime]System.Object::.ctor()
            /* 0x000002B0 2A           */ IL_0006: ret
        } // end of method '<>c__DisplayClass0_0'::.ctor

    } // end of class <>c__DisplayClass0_0

    // Token: 0x02000004 RID: 4
    .class nested private auto ansi sealed beforefieldinit '<>c__DisplayClass0_1'
        extends [System.Runtime]System.Object
    {
        .custom instance void [System.Runtime]System.Runtime.CompilerServices.CompilerGeneratedAttribute::.ctor() = (
            01 00 00 00
        )
        // Fields
        // Token: 0x04000002 RID: 2
        .field public int32 y
        // Token: 0x04000003 RID: 3
        .field public class Sandbox.Program/'<>c__DisplayClass0_0' 'CS$<>8__locals1'

        // Methods
        // Token: 0x06000004 RID: 4 RVA: 0x000020B1 File Offset: 0x000002B1
        .method public hidebysig specialname rtspecialname
            instance void .ctor () cil managed
        {
            // Header Size: 1 byte
            // Code Size: 7 (0x7) bytes
            .maxstack 8

            /* 0x000002B2 02           */ IL_0000: ldarg.0
            /* 0x000002B3 280E00000A   */ IL_0001: call      instance void [System.Runtime]System.Object::.ctor()
            /* 0x000002B8 2A           */ IL_0006: ret
        } // end of method '<>c__DisplayClass0_1'::.ctor

    } // end of class <>c__DisplayClass0_1

    // Token: 0x02000005 RID: 5
    .class nested private auto ansi sealed beforefieldinit '<>c__DisplayClass0_2'
        extends [System.Runtime]System.Object
    {
        .custom instance void [System.Runtime]System.Runtime.CompilerServices.CompilerGeneratedAttribute::.ctor() = (
            01 00 00 00
        )
        // Fields
        // Token: 0x04000004 RID: 4
        .field public int32 z
        // Token: 0x04000005 RID: 5
        .field public class Sandbox.Program/'<>c__DisplayClass0_1' 'CS$<>8__locals2'

        // Methods
        // Token: 0x06000005 RID: 5 RVA: 0x000020B9 File Offset: 0x000002B9
        .method public hidebysig specialname rtspecialname
            instance void .ctor () cil managed
        {
            // Header Size: 1 byte
            // Code Size: 7 (0x7) bytes
            .maxstack 8

            /* 0x000002BA 02           */ IL_0000: ldarg.0
            /* 0x000002BB 280E00000A   */ IL_0001: call      instance void [System.Runtime]System.Object::.ctor()
            /* 0x000002C0 2A           */ IL_0006: ret
        } // end of method '<>c__DisplayClass0_2'::.ctor

        // Token: 0x06000006 RID: 6 RVA: 0x000020C1 File Offset: 0x000002C1
        .method assembly hidebysig
            instance void '<Main>b__0' () cil managed
        {
            // Header Size: 1 byte
            // Code Size: 41 (0x29) bytes
            .maxstack 8

            /* 0x000002C2 02           */ IL_0000: ldarg.0
            /* 0x000002C3 7B05000004   */ IL_0001: ldfld     class Sandbox.Program/'<>c__DisplayClass0_1' Sandbox.Program/'<>c__DisplayClass0_2'::'CS$<>8__locals2'
            /* 0x000002C8 7B03000004   */ IL_0006: ldfld     class Sandbox.Program/'<>c__DisplayClass0_0' Sandbox.Program/'<>c__DisplayClass0_1'::'CS$<>8__locals1'
            /* 0x000002CD 7B01000004   */ IL_000B: ldfld     int32 Sandbox.Program/'<>c__DisplayClass0_0'::x
            /* 0x000002D2 02           */ IL_0010: ldarg.0
            /* 0x000002D3 7B05000004   */ IL_0011: ldfld     class Sandbox.Program/'<>c__DisplayClass0_1' Sandbox.Program/'<>c__DisplayClass0_2'::'CS$<>8__locals2'
            /* 0x000002D8 7B02000004   */ IL_0016: ldfld     int32 Sandbox.Program/'<>c__DisplayClass0_1'::y
            /* 0x000002DD 58           */ IL_001B: add
            /* 0x000002DE 02           */ IL_001C: ldarg.0
            /* 0x000002DF 7B04000004   */ IL_001D: ldfld     int32 Sandbox.Program/'<>c__DisplayClass0_2'::z
            /* 0x000002E4 58           */ IL_0022: add
            /* 0x000002E5 280F00000A   */ IL_0023: call      void [System.Console]System.Console::WriteLine(int32)
            /* 0x000002EA 2A           */ IL_0028: ret
        } // end of method '<>c__DisplayClass0_2'::'<Main>b__0'

    } // end of class <>c__DisplayClass0_2


    // Methods
    // Token: 0x06000001 RID: 1 RVA: 0x00002050 File Offset: 0x00000250
    .method private hidebysig static
        void Main (
            string[] args
        ) cil managed
    {
        // Header Size: 12 bytes
        // Code Size: 69 (0x45) bytes
        // LocalVarSig Token: 0x11000001 RID: 1
        .maxstack 3
        .entrypoint
        .locals init (
            [0] class Sandbox.Program/'<>c__DisplayClass0_0' 'CS$<>8__locals0',
            [1] class Sandbox.Program/'<>c__DisplayClass0_1' 'CS$<>8__locals1'
        )

        /* 0x0000025C 7303000006   */ IL_0000: newobj    instance void Sandbox.Program/'<>c__DisplayClass0_0'::.ctor()
        /* 0x00000261 0A           */ IL_0005: stloc.0
        /* 0x00000262 06           */ IL_0006: ldloc.0
        /* 0x00000263 17           */ IL_0007: ldc.i4.1
        /* 0x00000264 7D01000004   */ IL_0008: stfld     int32 Sandbox.Program/'<>c__DisplayClass0_0'::x
        /* 0x00000269 7304000006   */ IL_000D: newobj    instance void Sandbox.Program/'<>c__DisplayClass0_1'::.ctor()
        /* 0x0000026E 0B           */ IL_0012: stloc.1
        /* 0x0000026F 07           */ IL_0013: ldloc.1
        /* 0x00000270 06           */ IL_0014: ldloc.0
        /* 0x00000271 7D03000004   */ IL_0015: stfld     class Sandbox.Program/'<>c__DisplayClass0_0' Sandbox.Program/'<>c__DisplayClass0_1'::'CS$<>8__locals1'
        /* 0x00000276 07           */ IL_001A: ldloc.1
        /* 0x00000277 18           */ IL_001B: ldc.i4.2
        /* 0x00000278 7D02000004   */ IL_001C: stfld     int32 Sandbox.Program/'<>c__DisplayClass0_1'::y
        /* 0x0000027D 7305000006   */ IL_0021: newobj    instance void Sandbox.Program/'<>c__DisplayClass0_2'::.ctor()
        /* 0x00000282 25           */ IL_0026: dup
        /* 0x00000283 07           */ IL_0027: ldloc.1
        /* 0x00000284 7D05000004   */ IL_0028: stfld     class Sandbox.Program/'<>c__DisplayClass0_1' Sandbox.Program/'<>c__DisplayClass0_2'::'CS$<>8__locals2'
        /* 0x00000289 25           */ IL_002D: dup
        /* 0x0000028A 19           */ IL_002E: ldc.i4.3
        /* 0x0000028B 7D04000004   */ IL_002F: stfld     int32 Sandbox.Program/'<>c__DisplayClass0_2'::z
        /* 0x00000290 FE0606000006 */ IL_0034: ldftn     instance void Sandbox.Program/'<>c__DisplayClass0_2'::'<Main>b__0'()
        /* 0x00000296 730C00000A   */ IL_003A: newobj    instance void [System.Runtime]System.Action::.ctor(object, native int)
        /* 0x0000029B 6F0D00000A   */ IL_003F: callvirt  instance void [System.Runtime]System.Action::Invoke()
        /* 0x000002A0 2A           */ IL_0044: ret
    } // end of method Program::Main

    // Token: 0x06000002 RID: 2 RVA: 0x000020A1 File Offset: 0x000002A1
    .method public hidebysig specialname rtspecialname
        instance void .ctor () cil managed
    {
        // Header Size: 1 byte
        // Code Size: 7 (0x7) bytes
        .maxstack 8

        /* 0x000002A2 02           */ IL_0000: ldarg.0
        /* 0x000002A3 280E00000A   */ IL_0001: call      instance void [System.Runtime]System.Object::.ctor()
        /* 0x000002A8 2A           */ IL_0006: ret
    } // end of method Program::.ctor

} // end of class Sandbox.Program