Add nested class constructors test.

test/Platforms/Echo.Platforms.AsmResolver.Tests/Emulation/CilVirtualMachineTest.cs

@@ -588,6 +588,23 @@ public void CallAndThrowUnhandledException(string methodName, object parameter)
             Assert.Equal(expectedException.GetType().FullName, result.ExceptionObject.GetObjectType().FullName);
         }
 
+        [Fact]
+        public void SteppingWithNestedInitializers()
+        {
+            // Look up metadata.
+            var method = _fixture
+                .MockModule.LookupMember<TypeDefinition>(typeof(ClassWithNestedInitializer.Class1).MetadataToken)
+                .Methods.First(m => m.Name == nameof(ClassWithNestedInitializer.Class1.Method));
+
+            // CAll method.
+            _vm.Invoker = DefaultInvokers.StepIn;
+            var result = _mainThread.Call(method, Array.Empty<BitVector>());
+
+            // Verify.
+            Assert.NotNull(result);
+            Assert.Equal(1337, result.AsSpan().I32);
+        }
+
         [Fact]
         public void StaticFieldWithInitialValueUpdate()
         {

test/Platforms/Mocks/ClassWithNestedInitializer.cs

@@ -0,0 +1,16 @@
+namespace Mocks;
+
+    public class ClassWithNestedInitializer
+    {
+        public class Class1
+        {
+            public static int Field = Class2.Field;
+
+            public static int Method() => Field;
+        }
+
+        public class Class2
+        {
+            public static int Field = 1337;
+        }
+    }