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diff --git a/‎src/vs/editor/common/model/editStack.ts‎
Lines changed: 9 additions & 0 deletions b/‎src/vs/editor/common/model/editStack.ts‎
Lines changed: 9 additions & 0 deletions
diff --git a/‎src/vs/editor/common/model/textChange.ts‎
Lines changed: 11 additions & 3 deletions b/‎src/vs/editor/common/model/textChange.ts‎
Lines changed: 11 additions & 3 deletions
diff --git a/‎src/vs/platform/undoRedo/common/undoRedoService.ts‎
Lines changed: 2 additions & 2 deletions b/‎src/vs/platform/undoRedo/common/undoRedoService.ts‎
Lines changed: 2 additions & 2 deletions
@@ -13,6 +13,7 @@ import { URI } from 'vs/base/common/uri';
 import { TextChange, compressConsecutiveTextChanges } from 'vs/editor/common/model/textChange';
 import * as buffer from 'vs/base/common/buffer';
 import { IDisposable } from 'vs/base/common/lifecycle';
+import { basename } from 'vs/base/common/resources';
 
 function uriGetComparisonKey(resource: URI): string {
 	return resource.toString();
@@ -340,6 +341,14 @@ export class MultiModelEditStackElement implements IWorkspaceUndoRedoElement {
 	public split(): IResourceUndoRedoElement[] {
 		return this._editStackElementsArr;
 	}
+
+	public toString(): string {
+		let result: string[] = [];
+		for (const editStackElement of this._editStackElementsArr) {
+			result.push(`${basename(editStackElement.resource)}: ${editStackElement}`);
+		}
+		return `{${result.join(', ')}}`;
+	}
 }
 
 export type EditStackElement = SingleModelEditStackElement | MultiModelEditStackElement;
 
@@ -6,6 +6,14 @@
 import * as buffer from 'vs/base/common/buffer';
 import { decodeUTF16LE } from 'vs/editor/common/core/stringBuilder';
 
+function escapeNewLine(str: string): string {
+	return (
+		str
+			.replace(/\n/g, '\\n')
+			.replace(/\r/g, '\\r')
+	);
+}
+
 export class TextChange {
 
 	public get oldLength(): number {
@@ -33,12 +41,12 @@ export class TextChange {
 
 	public toString(): string {
 		if (this.oldText.length === 0) {
-			return `(insert@${this.oldPosition} "${this.newText}")`;
+			return `(insert@${this.oldPosition} "${escapeNewLine(this.newText)}")`;
 		}
 		if (this.newText.length === 0) {
-			return `(delete@${this.oldPosition} "${this.oldText}")`;
+			return `(delete@${this.oldPosition} "${escapeNewLine(this.oldText)}")`;
 		}
-		return `(replace@${this.oldPosition} "${this.oldText}" with "${this.newText}")`;
+		return `(replace@${this.oldPosition} "${escapeNewLine(this.oldText)}" with "${escapeNewLine(this.newText)}")`;
 	}
 
 	private static _writeStringSize(str: string): number {
 
@@ -51,7 +51,7 @@ class ResourceStackElement {
 	}
 
 	public toString(): string {
-		return `[${this.id}] [${this.isValid ? 'VALID' : 'INVALID'}] ${this.actual}`;
+		return `[id:${this.id}] [group:${this.groupId}] [${this.isValid ? 'VALID' : 'INVALID'}] ${this.actual}`;
 	}
 }
 
@@ -172,7 +172,7 @@ class WorkspaceStackElement {
 	}
 
 	public toString(): string {
-		return `[${this.id}] [${this.invalidatedResources ? 'INVALID' : 'VALID'}] ${this.actual}`;
+		return `[id:${this.id}] [group:${this.groupId}] [${this.invalidatedResources ? 'INVALID' : 'VALID'}] ${this.actual}`;
 	}
 }
Original file line number	Diff line number	Diff line change
`@@ -51,7 +51,7 @@ class ResourceStackElement {`
`51`	`51`	`}`
`52`	`52`
`53`	`53`	`public toString(): string {`
`54`		- return `[${this.id}] [${this.isValid ? 'VALID' : 'INVALID'}] ${this.actual}`;
	`54`	+ return `[id:${this.id}] [group:${this.groupId}] [${this.isValid ? 'VALID' : 'INVALID'}] ${this.actual}`;
`55`	`55`	`}`
`56`	`56`	`}`
`57`	`57`
`@@ -172,7 +172,7 @@ class WorkspaceStackElement {`
`172`	`172`	`}`
`173`	`173`
`174`	`174`	`public toString(): string {`
`175`		- return `[${this.id}] [${this.invalidatedResources ? 'INVALID' : 'VALID'}] ${this.actual}`;
	`175`	+ return `[id:${this.id}] [group:${this.groupId}] [${this.invalidatedResources ? 'INVALID' : 'VALID'}] ${this.actual}`;
`176`	`176`	`}`
`177`	`177`	`}`
`178`	`178`