debug: show a link in error notifications

fixes #3591

src/vs/workbench/parts/debug/electron-browser/debugService.ts

@@ -592,13 +592,14 @@ export class DebugService extends ee.EventEmitter implements debug.IDebugService
 			this.inDebugMode.set(true);
 
 			this.telemetryService.publicLog('debugSessionStart', { type: configuration.type, breakpointCount: this.model.getBreakpoints().length, exceptionBreakpoints: this.model.getExceptionBreakpoints() });
-		}).then(undefined, (error: Error) => {
+		}).then(undefined, (error: any) => {
 			this.telemetryService.publicLog('debugMisconfiguration', { type: configuration ? configuration.type : undefined });
 			if (this.session) {
 				this.session.disconnect();
 			}
 
-			return TPromise.wrapError(errors.create(error.message, { actions: [CloseAction, this.instantiationService.createInstance(debugactions.ConfigureAction, debugactions.ConfigureAction.ID, debugactions.ConfigureAction.LABEL)] }));
+			const actions = error.actions ? error.actions : [CloseAction, this.instantiationService.createInstance(debugactions.ConfigureAction, debugactions.ConfigureAction.ID, debugactions.ConfigureAction.LABEL)];
+			return TPromise.wrapError(errors.create(error.message, { actions }));
 		});
 	}
 

src/vs/workbench/parts/debug/node/rawDebugSession.ts

@@ -8,6 +8,7 @@ import cp = require('child_process');
 import fs = require('fs');
 import net = require('net');
 import platform = require('vs/base/common/platform');
+import { Action } from 'vs/base/common/actions';
 import errors = require('vs/base/common/errors');
 import { TPromise } from 'vs/base/common/winjs.base';
 import severity from 'vs/base/common/severity';
@@ -16,8 +17,9 @@ import debug = require('vs/workbench/parts/debug/common/debug');
 import { Adapter } from 'vs/workbench/parts/debug/node/debugAdapter';
 import v8 = require('vs/workbench/parts/debug/node/v8Protocol');
 import stdfork = require('vs/base/node/stdFork');
-import { IMessageService } from 'vs/platform/message/common/message';
+import { IMessageService, CloseAction } from 'vs/platform/message/common/message';
 import { ITelemetryService } from 'vs/platform/telemetry/common/telemetry';
+import { shell } from 'electron';
 
 export class RawDebugSession extends v8.V8Protocol implements debug.IRawDebugSession {
 	private serverProcess: cp.ChildProcess;
@@ -65,6 +67,14 @@ export class RawDebugSession extends v8.V8Protocol implements debug.IRawDebugSes
 				this.telemtryAdapter.log('debugProtocolErrorResponse', { error: message });
 			}
 
+			if (error && error.url) {
+				const label = error.urlLabel ? error.urlLabel : nls.localize('moreInfo', "More Info");
+				return TPromise.wrapError(errors.create(message, { actions: [CloseAction, new Action('debug.moreInfo', label, null, true, () => {
+					shell.openExternal(error.url);
+					return TPromise.as(null);
+				})]}));
+			}
+
 			return TPromise.wrapError(new Error(message));
 		}));
 	}