loplugin:simplifybool (clang-cl)

Change-Id: I230c37482cfce85534f860ecf3426254be8981ab
diff --git a/vcl/win/app/salinst.cxx b/vcl/win/app/salinst.cxx
index 487cf7f..bc0c908 100644
--- a/vcl/win/app/salinst.cxx
+++ b/vcl/win/app/salinst.cxx
@@ -205,7 +205,7 @@ void ImplSalYieldMutexAcquireWithWait( sal_uInt32 nCount )
bool ImplSalYieldMutexTryToAcquire()
{
    WinSalInstance* pInst = GetSalData()->mpInstance;
    return pInst ? pInst->mpSalYieldMutex->tryToAcquire() : false;
    return pInst && pInst->mpSalYieldMutex->tryToAcquire();
}

void ImplSalYieldMutexRelease()