Small naming fixes

src/compiler/NubLang/TypeChecking/Node/TypeNode.cs

@@ -182,7 +182,7 @@ public class StructTypeNode(string name, IReadOnlyList<TypeNode> fields, IReadOn
     public IReadOnlyList<InterfaceTypeNode> InterfaceImplementations { get; set; } = interfaceImplementations;
 
     public override string ToString() => Name;
-    public override bool Equals(TypeNode? other) => other is StructTypeNode custom && Name == custom.Name;
+    public override bool Equals(TypeNode? other) => other is StructTypeNode structType && Name == structType.Name;
     public override int GetHashCode() => HashCode.Combine(typeof(StructTypeNode), Name);
 }
 
@@ -192,7 +192,7 @@ public class InterfaceTypeNode(string name, IReadOnlyList<FuncTypeNode> function
     public IReadOnlyList<FuncTypeNode> Functions { get; set; } = functions;
 
     public override string ToString() => Name;
-    public override bool Equals(TypeNode? other) => other is InterfaceTypeNode custom && Name == custom.Name;
+    public override bool Equals(TypeNode? other) => other is InterfaceTypeNode interfaceType && Name == interfaceType.Name;
     public override int GetHashCode() => HashCode.Combine(typeof(InterfaceTypeNode), Name);
 }
 

src/compiler/NubLang/TypeChecking/TypeChecker.cs

@@ -55,7 +55,7 @@ public sealed class TypeChecker
             ExternFuncSyntax definition => CheckExternFuncDefinition(definition),
             InterfaceSyntax definition => CheckInterfaceDefinition(definition),
             LocalFuncSyntax definition => CheckLocalFuncDefinition(definition),
-            StructSyntax definition => CheckStruct(definition),
+            StructSyntax definition => CheckStructDefinition(definition),
             _ => throw new ArgumentOutOfRangeException(nameof(node))
         };
     }
@@ -72,7 +72,7 @@ public sealed class TypeChecker
         return new InterfaceNode(node.Name, functions);
     }
 
-    private StructNode CheckStruct(StructSyntax node)
+    private StructNode CheckStructDefinition(StructSyntax node)
     {
         var structFields = new List<StructFieldNode>();