src: organize TLSWrap declarations by parent

Make it clear which of the multiple interfaces a TLSWrap method is
implementing by grouping and commenting the related methods.

PR-URL: nodejs#25861
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>

src/tls_wrap.h

@@ -56,16 +56,19 @@ class TLSWrap : public AsyncWrap,
                          v8::Local<v8::Value> unused,
                          v8::Local<v8::Context> context);
 
-  int GetFD() override;
+  // Implement StreamBase:
   bool IsAlive() override;
   bool IsClosing() override;
-
-  // JavaScript functions
-  int ReadStart() override;
-  int ReadStop() override;
-
+  bool IsIPCPipe() override;
+  int GetFD() override;
   ShutdownWrap* CreateShutdownWrap(
       v8::Local<v8::Object> req_wrap_object) override;
+  AsyncWrap* GetAsyncWrap() override;
+
+
+  // Implement StreamResource:
+  int ReadStart() override;  // Exposed to JS
+  int ReadStop() override;   // Exposed to JS
   int DoShutdown(ShutdownWrap* req_wrap) override;
   int DoWrite(WriteWrap* w,
               uv_buf_t* bufs,
@@ -78,8 +81,8 @@ class TLSWrap : public AsyncWrap,
 
   void NewSessionDoneCb();
 
+  // Implement MemoryRetainer:
   void MemoryInfo(MemoryTracker* tracker) const override;
-
   SET_MEMORY_INFO_NAME(TLSWrap)
   SET_SELF_SIZE(TLSWrap)
 
@@ -135,13 +138,11 @@ class TLSWrap : public AsyncWrap,
     }
   }
 
-  AsyncWrap* GetAsyncWrap() override;
-  bool IsIPCPipe() override;
-
-  // Resource implementation
-  void OnStreamAfterWrite(WriteWrap* w, int status) override;
+  // Implement StreamListener:
+  // Returns buf that points into enc_in_.
   uv_buf_t OnStreamAlloc(size_t size) override;
   void OnStreamRead(ssize_t nread, const uv_buf_t& buf) override;
+  void OnStreamAfterWrite(WriteWrap* w, int status) override;
 
   v8::Local<v8::Value> GetSSLError(int status, int* err, std::string* msg);