[Native][tests] Introduce EXPECTED_TIMEOUT_FAILURE directive

It allows to correctly handle tests that were failed by timeout where such failure is the expected behavior.

native/native.tests/testData/samples/standalone_notr_long_running.kt

@@ -1,4 +1,5 @@
 // KIND: STANDALONE_NO_TR
+// EXPECTED_TIMEOUT_FAILURE
 
 import kotlin.math.E
 import kotlin.math.sqrt

native/native.tests/testData/samples/standalone_notr_long_running_and_verbose.kt

@@ -1,4 +1,5 @@
 // KIND: STANDALONE_NO_TR
+// EXPECTED_TIMEOUT_FAILURE
 
 import kotlin.math.E
 import kotlin.math.sqrt