LibWeb/WebAssembly: Add missing visit of WebAssembly::Memory::m_buffer

Userland/Libraries/LibWeb/WebAssembly/Memory.cpp

@@ -47,6 +47,12 @@ void Memory::initialize(JS::Realm& realm)
     WEB_SET_PROTOTYPE_FOR_INTERFACE_WITH_CUSTOM_NAME(Memory, WebAssembly.Memory);
 }
 
+void Memory::visit_edges(Visitor& visitor)
+{
+    Base::visit_edges(visitor);
+    visitor.visit(m_buffer);
+}
+
 // https://webassembly.github.io/spec/js-api/#dom-memory-grow
 WebIDL::ExceptionOr<u32> Memory::grow(u32 delta)
 {

Userland/Libraries/LibWeb/WebAssembly/Memory.h

@@ -38,6 +38,7 @@ private:
     Memory(JS::Realm&, Wasm::MemoryAddress);
 
     virtual void initialize(JS::Realm&) override;
+    virtual void visit_edges(Visitor&) override;
 
     WebIDL::ExceptionOr<void> reset_the_memory_buffer();
     static WebIDL::ExceptionOr<JS::NonnullGCPtr<JS::ArrayBuffer>> create_a_memory_buffer(JS::VM&, JS::Realm&, Wasm::MemoryAddress);