"Auto-ctor MSIL"

.method public hidebysig specialname rtspecialname instance void
      .ctor() cil managed
    {
      .custom instance void [System.Runtime]System.Runtime.CompilerServices.SkipLocalsInitAttribute::.ctor()
        = (01 00 00 00 )
      .maxstack 8

      IL_0000: ldarg.0      // this
      IL_0001: ldc.i4.0
      IL_0002: stfld        int32 BlogTests.Program/User::'<Age>k__BackingField'

      // [22 20 - 22 21]
      IL_0007: ret

    } // end of method User::.ctor