test/integration/goDebug.test.ts: enable switch goroutine test dap

The switch goroutine feature has now been merged into dlv dap
so the behavior can be included in the extension tests.

Updates #118

Change-Id: I1258eae502abcd7665887f5a225407e0fd1bd2a6
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/306989
Trust: Suzy Mueller <[email protected]>
Run-TryBot: Suzy Mueller <[email protected]>
TryBot-Result: kokoro <[email protected]>
Reviewed-by: Hyang-Ah Hana Kim <[email protected]>

Author: suzmue

test/integration/goDebug.test.ts

@@ -1637,12 +1637,19 @@ const testAll = (ctx: Mocha.Context, isDlvDap: boolean) => {
 			]);
 		}
 
-		test.skip('next', async () => {
-			// neither debug adapter implements this behavior
+		test.only('next', async function () {
+			if (!isDlvDap) {
+				// Not implemented in the legacy adapter.
+				this.skip();
+			}
 			await runSwitchGoroutineTest('next');
 		});
 
-		test.skip('step in', async () => {
+		test('step in', async function () {
+			if (!isDlvDap) {
+				// Not implemented in the legacy adapter.
+				this.skip();
+			}
 			// neither debug adapter implements this behavior
 			await runSwitchGoroutineTest('step in');
 		});