Copy dropped method nameToCompare() to test utils

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

@@ -26,6 +26,7 @@ import com.intellij.openapi.editor.Editor;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.Comparing;
 import com.intellij.openapi.util.ShutDownTracker;
+import com.intellij.openapi.util.SystemInfo;
 import com.intellij.openapi.util.io.FileUtil;
 import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.openapi.vfs.CharsetToolkit;
@@ -928,7 +929,7 @@ public class KotlinTestUtils {
     private static void assertFilePathPresent(File file, File rootFile, Set<String> filePaths) {
         String path = FileUtil.getRelativePath(rootFile, file);
         if (path != null) {
-            String relativePath = FileUtil.nameToCompare(path);
+            String relativePath = nameToCompare(path);
             if (!filePaths.contains(relativePath)) {
                 Assert.fail("Test data file missing from the generated test class: " + file + "\n" + PLEASE_REGENERATE_TESTS);
             }
@@ -940,7 +941,7 @@ public class KotlinTestUtils {
                 ContainerUtil.map(collectMethodsMetadata(testCaseClass), new Function<String, String>() {
                     @Override
                     public String fun(String pathData) {
-                        return FileUtil.nameToCompare(pathData);
+                        return nameToCompare(pathData);
                     }
                 }));
     }
@@ -1043,4 +1044,8 @@ public class KotlinTestUtils {
         //noinspection SpellCheckingInspection
         return testName.toLowerCase().startsWith("allfilespresentin");
     }
+
+    public static String nameToCompare(@NotNull String name) {
+        return (SystemInfo.isFileSystemCaseSensitive ? name : name.toLowerCase()).replace('\\', '/');
+    }
 }