A64: Synchronize with r15922.

test/webkit/fast/js/date-preserve-milliseconds-expected.txt

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-This test checks whether arguments crashes when passed a bad index.
+The following test checks if an existing milliseconds value gets preserved if a call to setHours(), setMinutes() or setSeconds() does not specify the milliseconds. See https://bugs.webkit.org/show_bug.cgi?id=3759
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
 
 
-PASS indexArguments(1, "a") is "a"
-PASS indexArguments("1 ", "a") is undefined
-PASS indexArguments(0xDEADBEEF) is undefined
-PASS indexArguments(0xFFFFFFFF) is undefined
+PASS d.getMilliseconds() is 1
+PASS d.getMilliseconds() is 1
+PASS d.getMilliseconds() is 1
+PASS d.getMilliseconds() is 1
+PASS d.getMilliseconds() is 1
+PASS d.getMilliseconds() is 1
 PASS successfullyParsed is true
 
 TEST COMPLETE