Debug Failure: tsserver throws after some move refactorings

[cevek]

TypeScript Version: 3.0.0-dev.20180626

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Code

Error: Debug Failure. False expression.
    at mergeSymbol (/usr/local/lib/node_modules/typescript/lib/tsserver.js:29904:26)
    at /usr/local/lib/node_modules/typescript/lib/tsserver.js:29965:49
    at Map.forEach (native)
    at mergeSymbolTable (/usr/local/lib/node_modules/typescript/lib/tsserver.js:29964:20)
    at mergeModuleAugmentation (/usr/local/lib/node_modules/typescript/lib/tsserver.js:29978:17)
    at initializeTypeChecker (/usr/local/lib/node_modules/typescript/lib/tsserver.js:54255:25)
    at Object.createTypeChecker (/usr/local/lib/node_modules/typescript/lib/tsserver.js:29636:9)
    at Object.getTypeChecker (/usr/local/lib/node_modules/typescript/lib/tsserver.js:82503:79)
    at InferredProject.Project.updateGraph (/usr/local/lib/node_modules/typescript/lib/tsserver.js:114332:59)
    at InferredProject.Project.getLanguageService (/usr/local/lib/node_modules/typescript/lib/tsserver.js:114030:26)
    at /usr/local/lib/node_modules/typescript/lib/tsserver.js:118169:51
    at ProjectService.forEachProject (/usr/local/lib/node_modules/typescript/lib/tsserver.js:115200:21)
    at IOSession.Session.getEditsForFileRename (/usr/local/lib/node_modules/typescript/lib/tsserver.js:118161:37)
    at Session.handlers.ts.createMapFromTemplate._a.(anonymous function) (/usr/local/lib/node_modules/typescript/lib/tsserver.js:117018:61)
    at /usr/local/lib/node_modules/typescript/lib/tsserver.js:118343:88
    at IOSession.Session.executeWithRequestId (/usr/local/lib/node_modules/typescript/lib/tsserver.js:118334:28)
    at IOSession.Session.executeCommand (/usr/local/lib/node_modules/typescript/lib/tsserver.js:118343:33)
    at IOSession.Session.onMessage (/usr/local/lib/node_modules/typescript/lib/tsserver.js:118363:35)
    at Interface.<anonymous> (/usr/local/lib/node_modules/typescript/lib/tsserver.js:119618:27)

[mhegazy]

Can you share your tsserver log file?

[mhegazy]

You can upload logs using

1. With "typescript.tsserver.log": "verbose" enabled
2. Restart vscode or vscode insiders
3. Reproduce the problem
4. Run code --upload-logs on the command line (or code-insiders --upload-logs if using vscode insiders) and follow instructions
5. Share the log file ID

[amcasey]

The specific refactoring appears to be getEditsForFileRename, so @Andy-MS might want to take a look. Also, @sandersn for mergeSymbolTable.

[sandersn]

@cevek This should be fixed by #25463 in typescript@next, which should be available tomorrow.