[fix] 修复计算struct等价性时，将struct平铺展开计算等价，在某些平台并不适用的bug。例如 struct A { uint8_t x; A2 y; } struct A2 { uint8_t x; int32_t y;}; 跟 struct B {uint8_t x; uint8_t y; int32_t z;} 在x86_64 abi下并不等价

Editor/MethodBridge/Generator.cs

@@ -288,7 +288,7 @@ namespace HybridCLR.Editor.MethodBridge
             var sigBuf = new StringBuilder();
             foreach (var field in ati.fields)
             {
-                sigBuf.Append(GetOrCalculateTypeInfoSignature(ToIsomorphicType(field)));
+                sigBuf.Append("{" + GetOrCalculateTypeInfoSignature(ToIsomorphicType(field)) + "}");
             }
             return ati.signature = sigBuf.ToString();
         }