Fixed incorrect rename of the identifiers of the added helpers in some rare cases

Fixed https://github.com/javascript-obfuscator/javascript-obfuscator/issues/804

test/functional-tests/analyzers/scope-analyzer/ScopeAnalyzer.spec.ts

@@ -0,0 +1,50 @@
+import 'reflect-metadata';
+
+import { assert } from 'chai';
+
+import { readFileAsString } from '../../../helpers/readFileAsString';
+
+import { JavaScriptObfuscator } from '../../../../src/JavaScriptObfuscatorFacade';
+
+describe('ScopeAnalyzer', () => {
+    describe('analyze', () => {
+        /**
+         * https://github.com/javascript-obfuscator/javascript-obfuscator/issues/804
+         */
+        describe('Variant #1: should attach a valid missing ranges', function() {
+            this.timeout(120000);
+
+            const samplesCount: number = 1000;
+            let error: string | null = null;
+
+            beforeEach(() => {
+                const code: string = readFileAsString(__dirname + '/fixtures/attach-missing-ranges.js');
+
+                for (let i = 0; i < samplesCount; i++) {
+                    let obfuscatedCode: string = JavaScriptObfuscator.obfuscate(
+                        code,
+                        {
+                            stringArray: false,
+                            selfDefending: true,
+                            controlFlowFlattening: true,
+                            controlFlowFlatteningThreshold: 0.1,
+                            splitStrings: false,
+                            seed: i
+                        }
+                    ).getObfuscatedCode();
+
+                    try {
+                        eval(obfuscatedCode);
+                    } catch ({message}) {
+                        error = message;
+                        break;
+                    }
+                }
+            });
+
+            it('should attach missing ranges based on the parent node and rename identifiers without errors', () => {
+                assert.equal(error, null);
+            });
+        });
+    });
+});

test/functional-tests/analyzers/scope-analyzer/fixtures/attach-missing-ranges.js

@@ -0,0 +1,3 @@
+function foo () {}
+
+foo();

test/index.spec.ts

@@ -51,6 +51,7 @@ import './unit-tests/utils/Utils.spec';
  * Functional tests
  */
 import './functional-tests/analyzers/calls-graph-analyzer/CallsGraphAnalyzer.spec';
+import './functional-tests/analyzers/scope-analyzer/ScopeAnalyzer.spec';
 import './functional-tests/cli/JavaScriptObfuscatorCLI.spec';
 import './functional-tests/code-transformers/preparing-transformers/hashbang-operator-transformer/HashbangOperatorTransformer.spec';
 import './functional-tests/custom-code-helpers/common/templates/GlobalVariableNoEvalTemplate.spec';