Use linux endings in generated tests

buildSrc/src/main/kotlin/CommonUtil.kt

@@ -58,6 +58,7 @@ fun Project.generator(fqName: String, sourceSet: SourceSet? = null) = smartJavaE
     classpath = (sourceSet ?: testSourceSet).runtimeClasspath
     main = fqName
     workingDir = rootDir
+    systemProperty("line.separator", "\n")
 }
 
 fun Project.getBooleanProperty(name: String): Boolean? = this.findProperty(name)?.let {

compiler/tests/org/jetbrains/kotlin/generators/tests/GenerateRangesCodegenTestData.java

@@ -18,7 +18,6 @@ package org.jetbrains.kotlin.generators.tests;
 
 import com.intellij.openapi.util.io.FileUtil;
 import com.intellij.openapi.util.text.StringUtil;
-import com.intellij.util.LineSeparator;
 
 import java.io.File;
 import java.io.FileNotFoundException;
@@ -148,7 +147,7 @@ public class GenerateRangesCodegenTestData {
                 .replace("$LIST", "list" + number)
                 .replace("$RANGE", "range" + number)
                 .replace("$TYPE", elementType)
-                .replace("\n", LineSeparator.getSystemLineSeparator().getSeparatorString());
+                .replace("\n", System.lineSeparator());
     }
 
     private static void writeIgnoreBackendDirective(PrintWriter out, String backendName) {