ignore invalid parameters (microsoft#160458)

Author: meganrogge

src/vs/platform/terminal/common/xterm/shellIntegrationAddon.ts

@@ -373,9 +373,6 @@ export class ShellIntegrationAddon extends Disposable implements IShellIntegrati
 				}
 			}
 			case VSCodeOscPt.SetMark: {
-				if (args.length > 2) {
-					return false;
-				}
 				this._createOrGetBufferMarkDetection(this._terminal).addMark(parseMarkSequence(args));
 				return true;
 			}

src/vs/workbench/contrib/terminal/test/browser/xterm/shellIntegrationAddon.test.ts

@@ -240,13 +240,6 @@ suite('ShellIntegrationAddon', () => {
 			await writeP(xterm, '\x1b]633;SetMark;1;Hidden\x07');
 			strictEqual(capabilities.has(TerminalCapability.BufferMarkDetection), true);
 		});
-		test('SetMark - invalid', async () => {
-			strictEqual(capabilities.has(TerminalCapability.BufferMarkDetection), false);
-			await writeP(xterm, 'foo');
-			strictEqual(capabilities.has(TerminalCapability.BufferMarkDetection), false);
-			await writeP(xterm, '\x1b]633;SetMark;;;\x07');
-			strictEqual(capabilities.has(TerminalCapability.BufferMarkDetection), false);
-		});
 		suite('parseMarkSequence', () => {
 			test('basic', async () => {
 				deepEqual(parseMarkSequence(['', '']), { id: undefined, hidden: false });