There are a little more places that retrieves ParserAtom from ParserAtomsTable (or CompilationStencil) and operate on it.
if we want to add TaggedParserAtomIndex without entry, those operation needs to be hidden behind ParserAtomsTable.

Some operations that needs to be performed without entry instance:

• ParserAtomEntry::isPrivateName [1]
• StringBuffer::append [2][3]
• ParserAtomEntry::toNumber [4]
• ParserAtomEntry::isIndex [5][6][7]
• ParserAtomEntry::concatAtoms [8][9]
  • this needs InflatedChar16Sequence and SpecificParserAtomLookup to be rewritten
• QuoteString [10]
• several dump operations in ParseNode.cpp
• IsExtendedUnclonedSelfHostedFunctionName [11]
• ParserAtomToNewUTF8CharsZ [12]
• CompilationStencil::getParserAtomAt + toJSAtom [13]

toJSAtom/equalsJSAtom calls [14][15][16] will be removed by bug 1660275
ReservedWordTokenKind/IsKeyword calls [17][18][19] will be removed by bug 1687634

[1] https://searchfox.org/mozilla-central/rev/0a489e67575540f5aeb968208ae03ff17eb71e94/js/src/frontend/BytecodeEmitter.cpp#1768
[2] https://searchfox.org/mozilla-central/rev/0a489e67575540f5aeb968208ae03ff17eb71e94/js/src/frontend/BytecodeEmitter.cpp#9305-9309
[3] https://searchfox.org/mozilla-central/rev/0a489e67575540f5aeb968208ae03ff17eb71e94/js/src/frontend/Parser.cpp#7440-7442
[4] https://searchfox.org/mozilla-central/rev/0a489e67575540f5aeb968208ae03ff17eb71e94/js/src/frontend/FoldConstants.cpp#468-472
[5] https://searchfox.org/mozilla-central/rev/0a489e67575540f5aeb968208ae03ff17eb71e94/js/src/frontend/FoldConstants.cpp#1096-1099
[6] https://searchfox.org/mozilla-central/rev/0a489e67575540f5aeb968208ae03ff17eb71e94/js/src/frontend/Parser.cpp#8205-8206
[7] https://searchfox.org/mozilla-central/rev/0a489e67575540f5aeb968208ae03ff17eb71e94/js/src/frontend/Parser.cpp#10828-10831
[8] https://searchfox.org/mozilla-central/rev/0a489e67575540f5aeb968208ae03ff17eb71e94/js/src/frontend/FoldConstants.cpp#1220-1257
[9] https://searchfox.org/mozilla-central/rev/0a489e67575540f5aeb968208ae03ff17eb71e94/js/src/frontend/Parser.cpp#2434-2445
[10] https://searchfox.org/mozilla-central/rev/0a489e67575540f5aeb968208ae03ff17eb71e94/js/src/frontend/ParseContext.cpp#183-185
[11] https://searchfox.org/mozilla-central/rev/0a489e67575540f5aeb968208ae03ff17eb71e94/js/src/frontend/Parser.cpp#2952-2953
[12] https://searchfox.org/mozilla-central/rev/0a489e67575540f5aeb968208ae03ff17eb71e94/js/src/wasm/AsmJS.cpp#1040-1044
[13] https://searchfox.org/mozilla-central/rev/0a489e67575540f5aeb968208ae03ff17eb71e94/js/src/frontend/Stencil.cpp#219-221
[14] https://searchfox.org/mozilla-central/rev/0a489e67575540f5aeb968208ae03ff17eb71e94/js/src/frontend/EmitterScope.cpp#343-346
[15] https://searchfox.org/mozilla-central/rev/0a489e67575540f5aeb968208ae03ff17eb71e94/js/src/frontend/ParseContext.cpp#432-435
[16] https://searchfox.org/mozilla-central/rev/0a489e67575540f5aeb968208ae03ff17eb71e94/js/src/frontend/Parser.cpp#1517-1529
[17] https://searchfox.org/mozilla-central/rev/0a489e67575540f5aeb968208ae03ff17eb71e94/js/src/frontend/Parser.cpp#408-410
[18] https://searchfox.org/mozilla-central/rev/0a489e67575540f5aeb968208ae03ff17eb71e94/js/src/frontend/Parser.cpp#4821-4824
[19] https://searchfox.org/mozilla-central/rev/0a489e67575540f5aeb968208ae03ff17eb71e94/js/src/frontend/Parser.cpp#10223-10232

one toJSAtom call will be kept in bug 1660275, that can be converted to equalsJSAtom, and that way we still can hide the entry instance

Depends on D103927

Depends on D104014

Also made ParserAtom::isPrivateName not to return true for '#' atom.

Depends on D104015

Depends on D104016

Depends on D104017

Depends on D104018

Depends on D104019

Depends on D104020

Depends on D104021

Latin1/2-byte info in the parse shell function output is added for debugging
BinAST.
To reduce the access to raw ParserAtom, remove the info.

Depends on D104022

Depends on D104023

Depends on D104024

Depends on D104025

Depends on D104026

Depends on D104027

Depends on D104028

Depends on D104029

Depends on D104030

Also removed ParserAtom variant of IsIdentifierNameOrPrivateName.

Depends on D104031

Depends on D104032

Depends on D104033

Depends on D104034

Depends on D104035

Depends on D104036

Depends on D104037

Depends on D104038

Depends on D104039

Depends on D104040

Depends on D104041

Depends on D104042

Please add a set of dump methods to the table as well. I'm finding it tough to work on the Parser with tagged-indices. A "parserAtoms()" method on the ParserSharedBase would be great too.

A similar "parserAtoms()" method on BCE and on CompilationStencil using a consistent name would be useful while debugging too.

Depends on D104187

Depends on D104372

Added parserAtoms() to Parser and BCE, in Part 5.

also added ParserAtomsTable::dump in new Part 30.
unfortunately CompilationStencil cannot have parserAtoms(), so instead added dumpAtom to ParserSharedBase, BytecodeEmitter, and BaseCompilationStencil, for consistent debugging experience.

Also, given stencil is const during instantiation, made dump methods const in Part 31.

https://hg.mozilla.org/mozilla-central/rev/85c9a010945c
https://hg.mozilla.org/mozilla-central/rev/f9e2666bf301
https://hg.mozilla.org/mozilla-central/rev/d1cbd27747f8
https://hg.mozilla.org/mozilla-central/rev/639ee602864a
https://hg.mozilla.org/mozilla-central/rev/c29f32d422eb
https://hg.mozilla.org/mozilla-central/rev/8e8144338c6d
https://hg.mozilla.org/mozilla-central/rev/ef285bd6c1fc
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https://hg.mozilla.org/mozilla-central/rev/bba0db1041fb
https://hg.mozilla.org/mozilla-central/rev/7bc8b48a1c9d
https://hg.mozilla.org/mozilla-central/rev/266e6140dd1e
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https://hg.mozilla.org/mozilla-central/rev/ec14d7f6213a
https://hg.mozilla.org/mozilla-central/rev/1c79beeead63
https://hg.mozilla.org/mozilla-central/rev/4ab154f38cf0
https://hg.mozilla.org/mozilla-central/rev/95a4c4eea098
https://hg.mozilla.org/mozilla-central/rev/f1eb1fc30f5b
https://hg.mozilla.org/mozilla-central/rev/ed6cc4612b9b
https://hg.mozilla.org/mozilla-central/rev/013508ca9b54
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https://hg.mozilla.org/mozilla-central/rev/fbececd93707
https://hg.mozilla.org/mozilla-central/rev/c21f885017e1
https://hg.mozilla.org/mozilla-central/rev/95001c13ec10
https://hg.mozilla.org/mozilla-central/rev/76359ef43eff
https://hg.mozilla.org/mozilla-central/rev/458d73fd5570
https://hg.mozilla.org/mozilla-central/rev/4d70abf61922
https://hg.mozilla.org/mozilla-central/rev/c2b234ffef9a
https://hg.mozilla.org/mozilla-central/rev/66dd73e65cfe
https://hg.mozilla.org/mozilla-central/rev/1f98bd3f866b
https://hg.mozilla.org/mozilla-central/rev/0400fd2ce99d
https://hg.mozilla.org/mozilla-central/rev/c23b6266f08d