Quick fix triggers debug assert

[DanielRosenwasser]

Create an anonymous buffer

let foo = 1;
fooo/**/

Get quick fixes at fooo:

[Error  - 12:55:44 PM] 'getCodeFixes' request failed with error.
Error processing request. Debug Failure. False expression.
Error: Debug Failure. False expression.
    at mapTextChangesToCodeEdits (C:\Users\Daniel\AppData\Local\nvs\node\10.4.1\x64\node_modules\typescript\lib\tsserver.js:119251:22)
    at IOSession.Session.mapTextChangeToCodeEdit (C:\Users\Daniel\AppData\Local\nvs\node\10.4.1\x64\node_modules\typescript\lib\tsserver.js:119077:24)
    at C:\Users\Daniel\AppData\Local\nvs\node\10.4.1\x64\node_modules\typescript\lib\tsserver.js:119074:73
    at Array.map (native)
    at IOSession.Session.mapTextChangesToCodeEdits (C:\Users\Daniel\AppData\Local\nvs\node\10.4.1\x64\node_modules\typescript\lib\tsserver.js:119074:36)
    at IOSession.Session.mapCodeFixAction (C:\Users\Daniel\AppData\Local\nvs\node\10.4.1\x64\node_modules\typescript\lib\tsserver.js:119070:84)
    at C:\Users\Daniel\AppData\Local\nvs\node\10.4.1\x64\node_modules\typescript\lib\tsserver.js:119023:96
    at Array.map (native)
    at IOSession.Session.getCodeFixes (C:\Users\Daniel\AppData\Local\nvs\node\10.4.1\x64\node_modules\typescript\lib\tsserver.js:119023:55)
    at Session.handlers.ts.createMapFromTemplate._a.(anonymous function) (C:\Users\Daniel\AppData\Local\nvs\node\10.4.1\x64\node_modules\typescript\lib\tsserver.js:117896:61)
    at C:\Users\Daniel\AppData\Local\nvs\node\10.4.1\x64\node_modules\typescript\lib\tsserver.js:119186:88
    at IOSession.Session.executeWithRequestId (C:\Users\Daniel\AppData\Local\nvs\node\10.4.1\x64\node_modules\typescript\lib\tsserver.js:119177:28)
    at IOSession.Session.executeCommand (C:\Users\Daniel\AppData\Local\nvs\node\10.4.1\x64\node_modules\typescript\lib\tsserver.js:119186:33)
    at IOSession.Session.onMessage (C:\Users\Daniel\AppData\Local\nvs\node\10.4.1\x64\node_modules\typescript\lib\tsserver.js:119206:35)
    at Interface.<anonymous> (C:\Users\Daniel\AppData\Local\nvs\node\10.4.1\x64\node_modules\typescript\lib\tsserver.js:120473:27)
    at emitOne (events.js:96:13)
    at Interface.emit (events.js:191:7)
    at Interface._onLine (readline.js:241:10)
    at Interface._normalWrite (readline.js:384:12)
    at Socket.ondata (readline.js:101:10)
    at emitOne (events.js:96:13)
    at Socket.emit (events.js:191:7)
    at readableAddChunk (_stream_readable.js:178:18)
    at Socket.Readable.push (_stream_readable.js:136:10)
    at Pipe.onread (net.js:560:20)

[DanielRosenwasser]

I suspect this is triggered by the spelling quick fix, but not necessarily caused by logic in it.

[ghost]

@DanielRosenwasser What editor are you using? What typescript version? I can't seem to reproduce this with [email protected], and get a correct quick fix.

[DanielRosenwasser]

Same TS version - are you using an unsaved buffer?

[Window Title]
Visual Studio Code

[Main Instruction]
Visual Studio Code

[Content]

Version: 1.25.0
Commit: 0f080e5267e829de46638128001aeb7ca2d6d50e
Date: 2018-07-05T13:11:58.697Z
Electron: 1.7.12
Chrome: 58.0.3029.110
Node.js: 7.9.0
V8: 5.8.283.38
Architecture: x64