[Webkit-unassigned] [Bug 138497] New: get-by-pname.js is failing when run with JSC_useLLINT=false and other special JIT configurations

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=138497

            Bug ID: 138497
           Summary: get-by-pname.js is failing when run with
                    JSC_useLLINT=false and other special JIT
                    configurations
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mark.lam at apple.com

The get_by_pname test changes in r175724 exposed some latent bugs that is bleeding the bots:
https://build.webkit.org/builders/Apple%20Yosemite%2032-bit%20JSC%20%28BuildAndTest%29?numbuilds=100

I confirmed that the issue has nothing to do with the fix in that change.  Here's a reduced test case that will illustrate the issue:
=== BEGIN test.js ===
function foo(o, v) {
    var result = 0;
    for (var n in o)
        result += v[n] ? v[n] : 0;
    return result;
}

var o = {a:1, b:3, c:7};
var a = [1, 2, 3];
var o1 = {"1":1, "2":3, "3":7};

for (var i = 0; i <= 1; i++) {
    foo(a, 'abc');
    foo(a, o);
    foo(a, o1);
}
=== END test.js ===

Run the test using jsc as follows:
$ JSC_useLLInt=0 DYLD_FRAMEWORK_PATH=/path/to/your/OpenSource/WebKitBuild/Debug/ WebKitBuild/Debug/jsc test.js

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