Normalize all drive letters going out from vscode to debug adapters so we are...

Normalize all drive letters going out from vscode to debug adapters so we are consistent with our resolving

fixes #43959

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

@@ -54,6 +54,7 @@ import { TaskEvent, TaskEventKind } from 'vs/workbench/parts/tasks/common/tasks'
 import { IChoiceService } from 'vs/platform/dialogs/common/dialogs';
 import { INotificationService } from 'vs/platform/notification/common/notification';
 import { IAction, Action } from 'vs/base/common/actions';
+import { normalizeDriveLetter } from 'vs/base/common/labels';
 
 const DEBUG_BREAKPOINTS_KEY = 'debug.breakpoint';
 const DEBUG_BREAKPOINTS_ACTIVATED_KEY = 'debug.breakpointactivated';
@@ -1195,6 +1196,8 @@ export class DebugService implements debug.IDebugService {
 			if (breakpointsToSend.length && !rawSource.adapterData) {
 				rawSource.adapterData = breakpointsToSend[0].adapterData;
 			}
+			// Normalize all drive letters going out from vscode to debug adapters so we are consistent with our resolving #43959
+			rawSource.path = normalizeDriveLetter(rawSource.path);
 
 			return session.setBreakpoints({
 				source: rawSource,