[Webkit-unassigned] [Bug 187945] New: Different output compared with other JS engines: can't find variable

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=187945

            Bug ID: 187945
           Summary: Different output compared with other JS engines: can't
                    find variable
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sunlili at ict.ac.cn

Hello,
    Running following js code:
-----------------------------------
let testCases = [                                                                                                              
  function() {
    return {
      start: 0,
      end: 100,
      test: function test() {
      }   
    };  
  },  
];
for(let testCase of testCases) {
  let testInfo = testCase();

  function run() {
      print(testInfo);
  }

  run();

}

print("BT_FLAG");
-----------------------------------

    Output of ch, v8 and firefox:
[object Object]
BT_FLAG

    However, output of jsc is:
Exception: ReferenceError: Can't find variable: testInfo


BT group
2018.7.24

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