VSCode ref jump feature shows error under the project without operations in project or schema is specified in the ref

[moker-spaghetti]

VSCode ref jump featre fails with the situations below.

a) When project lacks operations

[Error - 12:43:20 PM] Request textDocument/definition failed.
  Message: Request textDocument/definition failed with message: Cannot read properties of undefined (reading 'target')
  Code: -32603 

Without operations, graph.operations would be undefined in gatherAllActions() and accessing action.target.name in retrieveLinkedFileName() fails.

dataform/vscode/server.ts

Line 127 in 9698b76

return [].concat(graph.tables, graph.operations, graph.assertions, graph.declarations);

dataform/vscode/server.ts

Line 132 in 9698b76

const foundCompileAction = allActions.find(action => action.target.name === ref);

b) When schema / project is specified in ref()

[Error - 1:09:02 PM] Request textDocument/definition failed.
  Message: Request textDocument/definition failed with message: Cannot read properties of undefined (reading 'fileName')
  Code: -32603 

Current code does not work when schema / project is specified in ref().

dataform/vscode/server.ts

Line 144 in 9698b76

const refRegex = new RegExp(/(?<=ref\(\"|'\s*).*?(?=\s*\"|'\))/g); // tslint:disable-line