Add annotation to prevent test invocation twice

Cause: it helps to fix double inversion of muted non-flaky tests result
(KTI-216).

plugins/uast-kotlin/tests/org/jetbrains/uast/test/env/kotlin/AbstractTestWithCoreEnvironment.kt

@@ -14,6 +14,7 @@ import com.intellij.psi.PsiManager
 import com.intellij.rt.execution.junit.FileComparisonFailure
 import junit.framework.TestCase
 import org.jetbrains.kotlin.test.IdeaSystemPropertiesForParallelRunConfigurator
+import org.jetbrains.kotlin.test.WithMutedInDatabaseRunTest
 import org.jetbrains.kotlin.test.runTest
 import org.jetbrains.uast.UastContext
 import org.jetbrains.uast.UastLanguagePlugin
@@ -21,6 +22,7 @@ import org.jetbrains.uast.evaluation.UEvaluatorExtension
 import org.jetbrains.uast.java.JavaUastLanguagePlugin
 import java.io.File
 
+@WithMutedInDatabaseRunTest
 abstract class AbstractTestWithCoreEnvironment : TestCase() {
 
     companion object {