Update JUnit3RunnerWithInners.java for Gradle 4.6 (KT-23292)

Update after "Executer -> Executor" rename
https://github.com/gradle/gradle/commit/3f1487e8006d0c606e3be25267a238427468917a

 #KT-23292 Fixed

compiler/tests-common/tests/org/jetbrains/kotlin/test/JUnit3RunnerWithInners.java

@@ -193,7 +193,7 @@ public class JUnit3RunnerWithInners extends Runner implements Filterable, Sortab
     private static String getGradleClassPattern(Filter filter) {
         try {
             Class<? extends Filter> filterClass = filter.getClass();
-            if (!"org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter$MethodNameFilter".equals(filterClass.getName())) {
+            if (!"org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor$MethodNameFilter".equals(filterClass.getName())) {
                 return null;
             }