Expose notebook variable type (microsoft#205250)

Author: rebornix

src/vs/workbench/api/common/extHost.protocol.ts

@@ -1119,6 +1119,7 @@ export interface VariablesResult {
 	id: number;
 	name: string;
 	value: string;
+	type?: string;
 	hasNamedChildren: boolean;
 	indexedChildrenCount: number;
 	extensionId: string;

src/vs/workbench/api/common/extHostNotebookKernels.ts

@@ -101,6 +101,7 @@ export class ExtHostNotebookKernels implements ExtHostNotebookKernelsShape {
 					return {
 						name: variable.name,
 						value: variable.value,
+						type: variable.type,
 						editable: false
 					};
 				});