Error doesn't show .fs line number #2052

Description

I have a reasonable error message showing .fs filename but not obvious which line of the code is triggering it. Can all errors show the line numbers?

Repro code

not a minimal repro but a real case!

https://github.com/terryspitz/dactyl-font/tree/SpiroFs at commit
a789333

Expected and actual results

Executing task: dotnet build /property:GenerateFullPaths=true /consoleloggerparameters:NoSummary <

Microsoft (R) Build Engine version 16.5.0+d4cbfca49 for .NET Core
Copyright (C) Microsoft Corporation. All rights reserved.

Restore completed in 47 ms for C:\src\dactyl-font\SpiroFs\SpiroFs.fsproj.
Restore completed in 304.53 ms for C:\src\dactyl-font\generator\generator.fsproj.
Restore completed in 304.54 ms for C:\src\dactyl-font\explorer\src\explorer.fsproj.
SpiroFs -> C:\src\dactyl-font\SpiroFs\bin\Debug\netstandard2.0\SpiroFs.dll
generator -> C:\src\dactyl-font\generator\bin\Debug\netcoreapp3.0\generator.dlTerminal will be reused by tasks, press any key to close it.
explorer -> C:\src\dactyl-font\explorer\src\bin\Debug\netcoreapp3.0\explorer.d> Executing task: npm run start <

@ start C:\src\dactyl-font\explorer
webpack-dev-server

i ｢wds｣: Project is running at http://localhost:8080/
i ｢wds｣: webpack output is served from /
i ｢wds｣: Content not from webpack is served from ./public
fable-compiler 2.4.15
dotnet binary: C:\src\Fable\src\Fable.Cli
fable: Compiled src\explorer.fsproj
fable: Compiled src\explorer.fs
× ｢wdm｣: Hash: 7c13cea601e6ca23db11
Version: webpack 4.41.6
Time: 32597ms
Built at: 09/05/2020 11:03:37
Asset Size Chunks Chunk Names
bundle.js 370 KiB main [emitted] main
Entrypoint main = bundle.js
[0] multi (webpack)-dev-server/client?http://localhost:8080 ./src/explorer.fsproj 40 bytes {main} [built]
[../generator/generator.fs] 356 bytes {main} [built] [failed] [1 error]
[./.fable/fable-library.2.8.1/Int32.js] 4.12 KiB {main} [built]
[./node_modules/ansi-html/index.js] 4.16 KiB {main} [built]
[./node_modules/webpack-dev-server/client/index.js?http://localhost:8080] (webpack)-dev-server/client?http://localhost:8080 4.29 KiB {main} [built]
[./node_modules/webpack-dev-server/client/overlay.js] (webpack)-dev-server/client/overlay.js 3.51 KiB {main} [built]
[./node_modules/webpack-dev-server/client/socket.js] (webpack)-dev-server/client/socket.js 1.53 KiB {main} [built]
[./node_modules/webpack-dev-server/client/utils/createSocketUrl.js] (webpack)-dev-server/client/utils/createSocketUrl.js 2.91 KiB {main} [built]
[./node_modules/webpack-dev-server/client/utils/log.js] (webpack)-dev-server/client/utils/log.js 964 bytes {main} [built]
[./node_modules/webpack-dev-server/client/utils/reloadApp.js] (webpack)-dev-server/client/utils/reloadApp.js 1.59 KiB {main} [built]
[./node_modules/webpack-dev-server/client/utils/sendMessage.js] (webpack)-dev-server/client/utils/sendMessage.js 402 bytes {main} [built]
[./node_modules/webpack-dev-server/node_modules/strip-ansi/index.js] (webpack)-dev-server/node_modules/strip-ansi/index.js 161 bytes {main} [built]
[./node_modules/webpack/hot sync ^./log$] (webpack)/hot sync nonrecursive ^./log$ 170 bytes {main} [built]
[./src/explorer.fs] 1.25 KiB {main} [built]
[./src/explorer.fsproj] 30 bytes {main} [built]
+ 21 hidden modules

ERROR in ../generator/generator.fs
Module build failed (from ./node_modules/fable-loader/index.js):
Error: Unexpected type Enum SpiroPointType for literal [ (System.Char) (C:/src/dactyl-font/generator/generator.fs)
at C:\src\dactyl-font\explorer\node_modules\fable-loader\index.js:99:22
at processTicksAndRejections (internal/process/task_queues.js:97:5)
@ ./src/explorer.fs 2:0-244 12:15-65 12:81-115 12:123-127 17:21-46
@ ./src/explorer.fsproj
i ｢wdm｣: Failed to compile.

Related information

• Fable version: npm show fable-compiler version or yarn info fable-compiler version
  npm show fable-compiler version
  2.9.0
• Windows 10
• VSCode