Relax flaky check in TestScopesAndVariables on windows/go1.15 (#2215)

Co-authored-by: NPolina Sokolova <polinasok@users.noreply.github.com>

service/dap/server_test.go

@@ -573,9 +573,9 @@ func TestScopesAndVariablesRequests(t *testing.T) {
 					startLineno := 62
 					if runtime.GOOS == "windows" && goversion.VersionAfterOrEqual(runtime.Version(), 1, 15) {
 						// Go1.15 on windows inserts a NOP after the call to
-						// runtime.Breakpoint and marks it as line 61 (same as the
-						// runtime.Breakpoint call).
-						startLineno = 61
+						// runtime.Breakpoint and marks it same line as the
+						// runtime.Breakpoint call, making this flaky, so skip the line check.
+						startLineno = -1
 					}
 
 					expectStackFrames(t, stack, startLineno, 1000, 4, 4)