ignore size for auto layout

Author: VSadov

src/tests/Loader/classloader/InlineArray/InlineArrayInvalid.cs

@@ -26,6 +26,10 @@ public static void Explicit_Fails()
     public static void ExplicitSize_Fails()
     {
         Console.WriteLine($"{nameof(ExplicitSize_Fails)}...");
+
+        // .size is ignored for auto layout
+        Assert.Equal(true, sizeof(ExplicitSizeAuto) > 0);
+
         Assert.Throws<TypeLoadException>(() => { var t = typeof(ExplicitSize); });
 
         Assert.Throws<TypeLoadException>(() =>

src/tests/Loader/classloader/InlineArray/InvalidCSharpInlineArray.il

@@ -25,6 +25,17 @@
     .field [0] public valuetype [System.Runtime]System.Guid Guid
 }
 
+.class public auto ansi sealed beforefieldinit ExplicitSizeAuto
+    extends [System.Runtime]System.ValueType
+{
+    .custom instance void [System.Runtime]System.Runtime.CompilerServices.InlineArrayAttribute::.ctor(int32) = (
+        01 00 01 00 00 00 00 00
+    )
+
+    .size 256
+    .field [0] public valuetype [System.Runtime]System.Guid Guid
+}
+
 .class public sequential ansi sealed beforefieldinit ZeroLength
     extends [System.Runtime]System.ValueType
 {