debug: allow multiple sessions with a tmp config attribute

src/vs/workbench/parts/debug/common/debug.ts

@@ -295,6 +295,7 @@ export interface IEnvConfig {
 	debugServer?: number;
 	noDebug?: boolean;
 	silentlyAbort?: boolean;
+	configurationNames?: string[];
 }
 
 export interface IExtHostConfig extends IEnvConfig {

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

@@ -546,6 +546,9 @@ export class DebugService implements debug.IDebugService {
 							if (configuration.silentlyAbort) {
 								return;
 							}
+							if (configuration.configurationNames) {
+								return TPromise.join(configuration.configurationNames.map(name => this.createProcess(name)));
+							}
 
 							if (!this.configurationManager.getAdapter(configuration.type)) {
 								return configuration.type ? TPromise.wrapError(new Error(nls.localize('debugTypeNotSupported', "Configured debug type '{0}' is not supported.", configuration.type)))

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

@@ -487,7 +487,7 @@ export class CallStackRenderer implements tree.IRenderer {
 	}
 
 	public renderElement(tree: tree.ITree, element: any, templateId: string, templateData: any): void {
-		if (templateId === CallStackRenderer.PROCESS_TEMPLATE_ID {
+		if (templateId === CallStackRenderer.PROCESS_TEMPLATE_ID) {
 			this.renderProcess(element, templateData);
 		} else if (templateId === CallStackRenderer.THREAD_TEMPLATE_ID) {
 			this.renderThread(element, templateData);