Auto merge of #24858 - saschanaz:handle-property, r=jdm

Handle u32 property indices

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Tried porting from Gecko, not sure how to do void JSID check yet.

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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix #14093

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- [x] There are tests for these changes

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bors-servo 2019-11-27 09:43:46 -05:00 committed by GitHub
commit a020522f37
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2 changed files with 40 additions and 28 deletions

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[HTMLCollection-supported-property-indices.html]
type: testharness
[Handling of property names that look like integers around 2^31]
expected: FAIL
[Handling of property names that look like integers around 2^32]
expected: FAIL
[Trying to set an expando that would shadow an already-existing indexed property]
expected: FAIL