advapi32/tests: Make sure to use return value (LLVM/Clang).

dlls/advapi32/tests/crypt.c

@@ -414,6 +414,7 @@ static void test_verify_sig(void)
 	 CRYPT_NEWKEYSET);
 	if (!ret && GetLastError() == NTE_EXISTS)
 		ret = pCryptAcquireContextA(&prov, szKeySet, NULL, PROV_RSA_FULL, 0);
+	ok(ret, "CryptAcquireContextA failed: %08x\n", GetLastError());
 	ret = pCryptImportKey(prov, (LPBYTE)privKey, sizeof(privKey), 0, 0, &key);
 	ok(ret, "CryptImportKey failed: %08x\n", GetLastError());
 	ret = pCryptCreateHash(prov, CALG_MD5, 0, 0, &hash);
@@ -898,6 +899,7 @@ static void test_set_provider_ex(void)
 	
 	/* call CryptGetDefaultProvider to see if they match */
 	result = pCryptGetDefaultProviderA(PROV_RSA_FULL, NULL, CRYPT_MACHINE_DEFAULT, NULL, &cbProvName);
+	ok(result, "%d\n", GetLastError());
 	if (!(pszProvName = LocalAlloc(LMEM_ZEROINIT, cbProvName)))
 		goto reset;