Incompatibility introduced between TypeScript 5.8.3 and 5.9.2

[blimmer]

When upgrading from TypeScript 5.8.3 to 5.9.2, I'm now getting these errors at build time:

evalmachine.<anonymous>:128647
              throw e;
              ^

Error: Debug Failure. False expression: Lexical environment is suspended.
    at Object.startLexicalEnvironment (evalmachine.<anonymous>:121175:11)
    at visitParameterList (evalmachine.<anonymous>:95964:11)
    at visitEachChildOfGetAccessorDeclaration (evalmachine.<anonymous>:96218:7)
    at Object.visitEachChild (evalmachine.<anonymous>:96117:33)
    at Object.nodeVisitor (/Users/blimmer/code/my-repo/node_modules/typescript-transform-paths/dist/visitor.js:117:23)
    at visitArrayWorker (evalmachine.<anonymous>:95931:49)
    at visitNodes2 (evalmachine.<anonymous>:95902:19)
    at visitEachChildOfTypeLiteralNode (evalmachine.<anonymous>:96307:7)
    at Object.visitEachChild (evalmachine.<anonymous>:96117:33)
    at Object.nodeVisitor (/Users/blimmer/code/my-repo/node_modules/typescript-transform-paths/dist/visitor.js:117:23)

Node.js v24.6.0

I'm working to see if I can create a small repro case, but I wanted to file this issue first to see if anyone has ideas on what might be causing this.

[danielpza]

@blimmer can you provide a reproduction test case? https://stackblitz.com/github/leddgroup/typescript-transform-paths/tree/master/examples/basic