Use vscodes TypeScript Language Server to Recommend Log Points

[swissmanu]

Suggestion

To determine the type of a token in the source code, the extension uses a fragile combination of parsing the code with the TypeScript compiler and requesting hovers for relevant AST nodes via the vscode.executeHoverProvider vscode command.

With this change, we would use the TS language server of vscode to determine the type of a token instead.

Advantages

• No overhead of additional TS parser runs
• Type determination for token is not depending from the hover API anymore. With this, it becomes more robust.

Risks

• Dependency to Extension API Request: Send Custom Requests To TypeScript Language Service Plugins microsoft/TypeScript#43893

[swissmanu]

This might be important on the long run, but the operator log point recommender would not really benefit from it. Removing from milestone v1.0.0.