debug: distinguish if there is a process left on session end

fixes #14332

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

@@ -559,6 +559,7 @@ export class Process implements debug.IProcess {
 	}
 }
 
+// TODO@Isidor breakpoint should not have a pointer to source. Source should live inside a stack frame
 export class Breakpoint implements debug.IBreakpoint {
 
 	public lineNumber: number;

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

@@ -804,25 +804,26 @@ export class DebugService implements debug.IDebugService {
 			// an internal module might be open so the dispose can throw -> ignore and continue with stop session.
 		}
 
-		this.partService.removeClass('debugging');
-
 		this.model.removeProcess(session.getId());
 		this.setFocusedStackFrameAndEvaluate(null).done(null, errors.onUnexpectedError);
 		this.setStateAndEmit(session.getId(), debug.State.Inactive);
 
-		// set breakpoints back to unverified since the session ended.
-		// source reference changes across sessions, so we do not use it to persist the source.
-		const data: { [id: string]: { line: number, verified: boolean } } = {};
-		this.model.getBreakpoints().forEach(bp => {
-			delete bp.source.raw.sourceReference;
-			data[bp.getId()] = { line: bp.lineNumber, verified: false };
-		});
-		this.model.updateBreakpoints(data);
+		if (this.model.getProcesses().length === 0) {
+			this.partService.removeClass('debugging');
+			// set breakpoints back to unverified since the session ended.
+			// source reference changes across sessions, so we do not use it to persist the source.
+			const data: { [id: string]: { line: number, verified: boolean } } = {};
+			this.model.getBreakpoints().forEach(bp => {
+				delete bp.source.raw.sourceReference;
+				data[bp.getId()] = { line: bp.lineNumber, verified: false };
+			});
+			this.model.updateBreakpoints(data);
 
-		this.inDebugMode.reset();
+			this.inDebugMode.reset();
 
-		if (!this.partService.isSideBarHidden() && this.configurationService.getConfiguration<debug.IDebugConfiguration>('debug').openExplorerOnEnd) {
-			this.viewletService.openViewlet(EXPLORER_VIEWLET_ID).done(null, errors.onUnexpectedError);
+			if (!this.partService.isSideBarHidden() && this.configurationService.getConfiguration<debug.IDebugConfiguration>('debug').openExplorerOnEnd) {
+				this.viewletService.openViewlet(EXPLORER_VIEWLET_ID).done(null, errors.onUnexpectedError);
+			}
 		}
 	}