rc4 encoding runtime error fix and performance boost

test/dev/dev.ts

@@ -1,4 +1,5 @@
 'use strict';
+import { NO_CUSTOM_NODES_PRESET } from '../../src/options/presets/NoCustomNodes';
 
 if (!(<any>global)._babelPolyfill) {
     require('babel-polyfill');
@@ -9,53 +10,13 @@ if (!(<any>global)._babelPolyfill) {
 
     let obfuscatedCode: string = JavaScriptObfuscator.obfuscate(
         `
-            (function(){
-                var result = 1,
-                    term1 = 0,
-                    term2 = 1,
-                    i = 1;
-                while(i < 10)
-                {
-                    var test = 10;
-                    result = term1 + term2;
-                    console.log(result);
-                    term1 = term2;
-                    term2 = result;
-                    i++;
-                }
-        
-                console.log(test);
-                
-                var test = function (test) {
-                    console.log(test);
-                    
-                    if (true) {
-                        var test = 5
-                    }
-                    
-                    return test;
-                }
-                
-                console.log(test(1));
-                
-                function test2 (abc) {
-                    function test1 () {
-                      console.log('inside', abc.item);
-                    }
-                    
-                    console.log('тест', abc);
-                    
-                    var abc = {};
-                    
-                    return abc.item = 15, test1();
-                };
-            })();
+            var test = console.log;
         `,
         {
+            ...NO_CUSTOM_NODES_PRESET,
             compact: false,
-            controlFlowFlattening: true,
-            controlFlowFlatteningThreshold: 1,
-            disableConsoleOutput: false
+            stringArray: true,
+            stringArrayThreshold: 1
         }
     ).getObfuscatedCode();
 

test/functional-tests/node-transformers/node-obfuscators/LiteralObfuscator.spec.ts

@@ -38,6 +38,27 @@ describe('LiteralObfuscator', () => {
             assert.match(obfuscationResult.getObfuscatedCode(),  /var *test *= *_0x([a-z0-9]){4}\('0x0'\);/);
         });
 
+        it('should create only one item in string array for same literal node values', () => {
+            let obfuscationResult: IObfuscationResult = JavaScriptObfuscator.obfuscate(
+                `
+                    var test = 'test';
+                    var test = 'test';
+                    object.test();
+                `,
+                {
+                    ...NO_CUSTOM_NODES_PRESET,
+                    stringArray: true,
+                    stringArrayThreshold: 1
+                }
+            );
+
+            assert.match(
+                obfuscationResult.getObfuscatedCode(),
+                /^var *_0x([a-z0-9]){4} *= *\['\\x74\\x65\\x73\\x74'\];/
+            );
+            assert.match(obfuscationResult.getObfuscatedCode(),  /var *test *= *_0x([a-z0-9]){4}\('0x0'\);/);
+        });
+
         it('should replace literal node value with raw value from string array if `unicodeEscapeSequence` is disabled', () => {
             let obfuscationResult: IObfuscationResult = JavaScriptObfuscator.obfuscate(
                 `var test = 'test';`,