The intelephense PHP extension requires VS Code support to be at least of v.1.31.0

[vrubezhny]

Description

It is impossible to install intelephense extension as Theia extension plugin because it requires VS Code v. >= 1.31.0, while we declare it to be 1.27.2 in plugin-ext-vscode. (I'm not sure on all the consequences, but the intelephenseextension was satisfied when I applied the following simple fix that just changes the declared VS Code version to be1.31.0`:

$ git diff packages/plugin-ext-vscode/src/node/plugin-vscode-init.ts
diff --git a/packages/plugin-ext-vscode/src/node/plugin-vscode-init.ts b/packages/plugin-ext-vscode/src/node/plugin-vscode-init.ts
index 1e017b9f..55381bf9 100644
--- a/packages/plugin-ext-vscode/src/node/plugin-vscode-init.ts
+++ b/packages/plugin-ext-vscode/src/node/plugin-vscode-init.ts
@@ -72,7 +72,7 @@ export const doInitialization: BackendInitializationFn = (apiFactory: PluginAPIF
     };
 
     // override the version for vscode to be a VSCode version
-    (<any>vscode).version = '1.27.2';
+    (<any>vscode).version = '1.31.0';

Reference issues:
eclipse-che/che#12796
eclipse-che/che#12797

[tsmaeder]

See also #4124

[tsmaeder]

@vrubezhny is there an older version of the plugin that would work with 1.27.2? If yes, what would we be missing compared to the latest version?

[vrubezhny]

Closing the issue as vscode supported version is updated by resolving #4124