Fix #3111: Fix dependencies of vscode-dotty

[smarter]

Using "^2.2.1" means "Any 2.x.y version >= 2.2.1", this isn't great for
reproducibility in general, and it also broke the build because
vscode-languageclient 3.4.* depend on a newer vscode engine. This commit
avoids this issue by using fixed version numbers instead.

Review by @esarbe ?

[esarbe]

Using this fix I get the following error:
(after removing node_modules and running npm update)

> launchIDE
[info] Compiling 9 Scala sources to /home/esarbe/source/dotty/compiler/target/scala-2.12/classes...
[info] Compiling 33 Scala sources to /home/esarbe/source/dotty/compiler/target/scala-2.12/classes...
[warn] there was one unchecked warning; re-run with -unchecked for details
[warn] one warning found
[warn] Multiple main classes detected.  Run 'show discoveredMainClasses' to see the list
[info] Packaging /home/esarbe/source/dotty/compiler/target/scala-2.12/dotty-compiler_2.12-0.4.0-bin-SNAPSHOT-nonbootstrapped.jar ...
[info] Done packaging.
[info] Compiling 9 Scala sources to /home/esarbe/source/dotty/compiler/../out/bootstrap/dotty-compiler-bootstrapped/scala-0.4/classes...
[info] Compiling 38 Scala sources to /home/esarbe/source/dotty/compiler/../out/bootstrap/dotty-compiler-bootstrapped/scala-0.4/classes...
[info] Compiling 4 Scala sources to /home/esarbe/source/dotty/doc-tool/../out/bootstrap/dotty-doc-bootstrapped/scala-0.4/classes...
[info] Compiling 10 Scala sources and 1 Java source to /home/esarbe/source/dotty/compiler/../out/bootstrap/dotty-compiler-bootstrapped/scala-0.4/test-classes...
[info] Compiling 3 Scala sources to /home/esarbe/source/dotty/compiler/../out/bootstrap/dotty-compiler-bootstrapped/scala-0.4/test-classes...

> [email protected] update-all /home/esarbe/source/dotty/vscode-dotty
> npm install && node ./node_modules/vscode/bin/install && curl -L -o out/coursier https://github.com/coursier/coursier/raw/v1.0.0-RC3/coursier

Detected VS Code engine version: ^1.12.0
Found minimal version that qualifies engine range: 1.12.0
Fetching vscode.d.ts from: https://raw.githubusercontent.com/Microsoft/vscode/1.12.0/src/vs/vscode.d.ts
vscode.d.ts successfully installed!

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   137  100   137    0     0    168      0 --:--:-- --:--:-- --:--:--   168
100 11814  100 11814    0     0  10605      0  0:00:01  0:00:01 --:--:-- 10605

18 process.stdout.setEncoding('utf8')
                  ~~~~~~~~~~~

vscode-dotty/src/passthrough-server.ts(18,16): error TS2339: Property 'setEncoding' does not exist on type 'WritableStream'.

[error] Running command "/home/esarbe/source/dotty/vscode-dotty/node_modules/.bin/tsc --pretty --project /home/esarbe/source/dotty/vscode-dotty" failed.
[error] (vscode-dotty/compile:compile) Running command "/home/esarbe/source/dotty/vscode-dotty/node_modules/.bin/tsc --pretty --project /home/esarbe/source/dotty/vscode-dotty" failed.
[error] Total time: 11 s, completed Sep 16, 2017 6:30:36 PM
> launchIDE
[warn] Multiple main classes detected.  Run 'show discoveredMainClasses' to see the list

1 import * as code from 'vscode';
                        ~~~~~~~~

vscode-dotty/node_modules/vscode-languageclient/lib/codeConverter.d.ts(1,23): error TS2307: Cannot find module 'vscode'.


4 import { Disposable, OutputChannel, FileSystemWatcher, DiagnosticCollection, CancellationToken } from 'vscode';
                                                                                                        ~~~~~~~~

vscode-dotty/node_modules/vscode-languageclient/lib/main.d.ts(4,103): error TS2307: Cannot find module 'vscode'.


1 import * as code from 'vscode';
                        ~~~~~~~~

vscode-dotty/node_modules/vscode-languageclient/lib/protocolCompletionItem.d.ts(1,23): error TS2307: Cannot find module 'vscode'.


1 import * as code from 'vscode';
                        ~~~~~~~~

vscode-dotty/node_modules/vscode-languageclient/lib/protocolConverter.d.ts(1,23): error TS2307: Cannot find module 'vscode'.


9 import { commands, workspace, Disposable, ExtensionContext, Uri } from 'vscode';
                                                                         ~~~~~~~~

vscode-dotty/src/extension.ts(9,72): error TS2307: Cannot find module 'vscode'.


12 import * as vscode from 'vscode';
                           ~~~~~~~~

vscode-dotty/src/extension.ts(12,25): error TS2307: Cannot find module 'vscode'.


18 process.stdout.setEncoding('utf8')
                  ~~~~~~~~~~~

vscode-dotty/src/passthrough-server.ts(18,16): error TS2339: Property 'setEncoding' does not exist on type 'WritableStream'.

[error] Running command "/home/esarbe/source/dotty/vscode-dotty/node_modules/.bin/tsc --pretty --project /home/esarbe/source/dotty/vscode-dotty" failed.
[error] (vscode-dotty/compile:compile) Running command "/home/esarbe/source/dotty/vscode-dotty/node_modules/.bin/tsc --pretty --project /home/esarbe/source/dotty/vscode-dotty" failed.
[error] Total time: 3 s, completed Sep 16, 2017 7:01:28 PM

[smarter]

@esarbe Fixed, sorry for the delay! I also added a package-lock.json to really fix all the transitive dependencies.

[allanrenucci]

Seems to fix the issue