Handle shadowed globals when they are JSX names

[matthieugicquel]

The existing logic to identify shadowed globals was not used when the shadowed name is a JSX name, even though shadowing can happen in this case.

I encountered that while using sucrase so here's the change that makes this case work

[github-actions]

Benchmark results

Before this PR: 281 thousand lines per second
After this PR: 275.6 thousand lines per second

Measured change: 1.9% slower (7.31% slower to 1.24% faster)
Summary: Likely no significant difference

[alangpierce]

Thank you, looks good to me!

[codecov]

Codecov Report

Merging #642 (6188a2b) into main (bacc167) will increase coverage by 0.07%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #642      +/-   ##
==========================================
+ Coverage   82.58%   82.65%   +0.07%     
==========================================
  Files          56       56              
  Lines        5689     5928     +239     
  Branches     1343     1344       +1     
==========================================
+ Hits         4698     4900     +202     
- Misses        708      745      +37     
  Partials      283      283              

Impacted Files	Coverage Δ
src/identifyShadowedGlobals.ts	88.09% <100.00%> (-0.80%)	⬇️
src/util/formatTokens.ts	70.58% <0.00%> (-10.06%)	⬇️
src/parser/util/identifier.ts	90.90% <0.00%> (-4.10%)	⬇️
src/util/shouldElideDefaultExport.ts	77.77% <0.00%> (-3.48%)	⬇️
src/util/getClassInfo.ts	87.85% <0.00%> (-1.85%)	⬇️
src/parser/plugins/jsx/index.ts	91.33% <0.00%> (-1.48%)	⬇️
src/parser/plugins/flow.ts	63.99% <0.00%> (-1.09%)	⬇️
src/parser/traverser/expression.ts	88.36% <0.00%> (-0.13%)	⬇️
src/Options.ts	100.00% <0.00%> (ø)
... and 20 more

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[alangpierce]

Just released as sucrase@3.20.1