Minor fixes to RegExp match indices after r273086

[Michael Saboff]

Through code inspection found an array size bug in RegExpPrototype.cpp.
Also found a compliance bug when populating the "groups" property for indices when there aren't any named groups.  In that case "groups" should be undefined instead on non-existent.

[Michael Saboff]

<rdar://problem/74497629>

[Michael Saboff]

Created attachment 420915 [details]
Patch

[Yusuke Suzuki]

Comment on attachment 420915 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=420915&action=review

r=me

> Source/JavaScriptCore/runtime/RegExpMatchesArray.h:109
> +            indicesArray->putDirect(vm, RegExpMatchesIndicesGroupsPropertyOffset, indicesGroups ? indicesGroups : jsUndefined());

Can you add a test for this change?

[Yusuke Suzuki]

Comment on attachment 420915 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=420915&action=review

> Source/JavaScriptCore/runtime/RegExpPrototype.cpp:165
> +typedef std::array<char, 7 + 1> FlagsString; // 6 different flags and a null character terminator.

/6 different flags/7 different flags/

[Michael Saboff]

Created attachment 420993 [details]
Added local versions of updated but unmarked test262 match-indices test

[Michael Saboff]

(In reply to Michael Saboff from comment #5)
> Created attachment 420993 [details]
> Added local versions of updated but unmarked test262 match-indices test

That should be "Added local versions of updated but unmerged test262 match-indices tests."

[Yusuke Suzuki]

Comment on attachment 420993 [details]
Added local versions of updated but unmarked test262 match-indices test

r=me

[Michael Saboff]

Committed r273160 (234355@main): <https://commits.webkit.org/234355@main>

[Robin Morisset]

*** Bug 222278 has been marked as a duplicate of this bug. ***