Revert "repl: handle buffered string logic on finish"

This reverts commit eb42c1e.

PR-URL: nodejs#24804
Refs: nodejs#24231
Reviewed-By: Anto Aravinth <anto.aravinth.cse@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>

lib/readline.js

@@ -357,9 +357,9 @@ Interface.prototype.undoHistory = function() {
 
 // If it's a multiline code, then add history
 // accordingly.
-Interface.prototype.multilineHistory = function(clearBuffer) {
-  // if not clear buffer, add multiline history
-  if (!clearBuffer && this.terminal) {
+Interface.prototype.multilineHistory = function() {
+  // check if we got a multiline code
+  if (this.multiline !== '' && this.terminal) {
     const dupIndex = this.history.indexOf(this.multiline);
     if (dupIndex !== -1) this.history.splice(dupIndex, 1);
     // Remove the last entered line as multiline

lib/repl.js

@@ -666,13 +666,6 @@ function REPLServer(prompt,
         }
       }
 
-      // handle multiline history
-      if (self[kBufferedCommandSymbol].length)
-        Interface.prototype.multilineHistory.call(self, false);
-      else {
-        Interface.prototype.multilineHistory.call(self, true);
-      }
-
       // Clear buffer if no SyntaxErrors
       self.clearBufferedCommand();
       sawCtrlD = false;
@@ -781,6 +774,7 @@ exports.start = function(prompt,
 
 REPLServer.prototype.clearBufferedCommand = function clearBufferedCommand() {
   this[kBufferedCommandSymbol] = '';
+  REPLServer.super_.prototype.multilineHistory.call(this);
 };
 
 REPLServer.prototype.close = function close() {