[Webkit-unassigned] [Bug 157524] New: [JSC] Assertion failure in JSC::JSObject::putInline (super-property-access.js)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=157524

            Bug ID: 157524
           Summary: [JSC] Assertion failure in JSC::JSObject::putInline
                    (super-property-access.js)
    Classification: Unclassified
           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: caitp at igalia.com

Failure in ftl-eager variants of super-property-access.js (introduced in http://trac.webkit.org/changeset/200586)

```
   56      ALWAYS_INLINE bool JSObject::putInline(JSCell* cell, ExecState* exec, PropertyName propertyName, JSValue value, PutPropertySlot& slot)
   57      {
   58          JSObject* thisObject = jsCast<JSObject*>(cell);
-> 59          ASSERT(value);
   60          ASSERT(!Heap::heap(value) || Heap::heap(value) == Heap::heap(thisObject));
   61          VM& vm = exec->vm();
   62      

```

reached via operationPutByValWithThisStrict

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