build: bump ts to v5

[RebeccaStevens]

PR Checklist

• Addresses an existing open issue, fixes 🚀 Feature: Support TypeScript v5 #159
• That issue was marked as status: accepting prs
• Steps in CONTRIBUTING.md were taken

Overview

To be (update and) merged once v5 full comes out.

[codecov]

Codecov Report

Merging #124 (a51f0e3) into main (c26ab15) will decrease coverage by 0.32%.
The diff coverage is 25.00%.

@@            Coverage Diff             @@
##             main     #124      +/-   ##
==========================================
- Coverage   21.80%   21.49%   -0.32%     
==========================================
  Files          18       18              
  Lines         431      442      +11     
  Branches      171      177       +6     
==========================================
+ Hits           94       95       +1     
- Misses        315      324       +9     
- Partials       22       23       +1     

Flag	Coverage Δ
4.2.4	20.81% <25.00%> (-0.30%)	⬇️
4.3.5	21.04% <25.00%> (-0.31%)	⬇️
4.4.4	21.04% <25.00%> (-0.31%)	⬇️
latest	20.81% <25.00%> (-0.54%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/comments.ts	0.00% <ø> (ø)
src/nodes/typeGuards/compound.ts	40.90% <ø> (ø)
src/nodes/typeGuards/single.ts	0.00% <ø> (ø)
src/nodes/typeGuards/union.ts	1.80% <0.00%> (-0.14%)	⬇️
src/nodes/utilities.ts	0.00% <ø> (ø)
src/tokens.ts	0.00% <ø> (ø)
src/types/getters.ts	36.36% <ø> (ø)
src/types/typeGuards/compound.ts	14.28% <ø> (ø)
src/types/typeGuards/objects.ts	50.00% <ø> (ø)
src/types/typeGuards/simple.ts	33.33% <ø> (ø)
... and 2 more

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[JoshuaKGoldberg]

Love it! Thanks @RebeccaStevens! 🚀

[RebeccaStevens]

Something seems to be going wrong with ts.createProgram.

[RebeccaStevens]

@JoshuaKGoldberg I got this working by using tsvfs.createVirtualTypeScriptEnvironment instead of tsvfs.createVirtualCompilerHost. Not sure why exactly this change was needed but it works now.

[JoshuaKGoldberg]

If it works, it works! 🚀