add new struct definitions

Il2CppInspector.Common/Next/Metadata/Il2CppMethodDefinition.cs

@@ -0,0 +1,62 @@
+using System.Reflection;
+using VersionedSerialization.Attributes;
+
+namespace Il2CppInspector.Next.Metadata;
+
+using StringIndex = int;
+using TypeDefinitionIndex = int;
+using TypeIndex = int;
+using ParameterIndex = int;
+using GenericContainerIndex = int;
+
+[VersionedStruct]
+public partial struct Il2CppMethodDefinition
+{
+    public StringIndex NameIndex { get; private set; }
+
+    [VersionCondition(GreaterThan = "16.0")]
+    public TypeDefinitionIndex DeclaringType { get; private set; }
+    public TypeIndex ReturnType { get; private set; }
+
+    [VersionCondition(EqualTo = "31.0")]
+    [VersionCondition(EqualTo = "31.1")]
+    [VersionCondition(EqualTo = "31.2")]
+    public uint ReturnParameterToken { get; private set; }
+
+    public ParameterIndex ParameterStart { get; private set; }
+
+    [VersionCondition(LessThan = "24.0")]
+    public int CustomAttributeIndex { get; private set; }
+
+    public GenericContainerIndex GenericContainerIndex { get; private set; }
+
+    [VersionCondition(LessThan = "24.1")]
+    public int MethodIndex { get; private set; }
+
+    [VersionCondition(LessThan = "24.1")]
+    public int InvokerIndex { get; private set; }
+
+    [VersionCondition(LessThan = "24.1")]
+    public int ReversePInvokeWrapperIndex { get; private set; }
+
+    [VersionCondition(LessThan = "24.1")]
+    public int RgctxStartIndex { get; private set; }
+
+    [VersionCondition(LessThan = "24.1")]
+    public int RgctxCount { get; private set; }
+
+    public uint Token { get; private set; }
+    public ushort Flags { get; private set; }
+    public ushort ImplFlags { get; private set; }
+    public ushort Slot { get; private set; }
+    public ushort ParameterCount { get; private set; }
+
+    [VersionCondition(EqualTo = "29.2")]
+    [VersionCondition(EqualTo = "31.2")]
+    public bool IsUnmanagedCallersOnly { get; private set; }
+
+    public readonly MethodAttributes Attributes => (MethodAttributes)Flags;
+    public readonly MethodImplAttributes ImplAttributes => (MethodImplAttributes)ImplFlags;
+
+    public readonly bool IsValid => NameIndex != 0;
+}