Added tests with NaN ends to codegen tests.

generators/org/jetbrains/jet/generators/tests/GenerateRangesCodegenTestData.java

@@ -66,6 +66,12 @@ public class GenerateRangesCodegenTestData {
         if (Pattern.compile("\\d\\.\\d").matcher(rangeExpression).find()) {
             return "Double";
         }
+        if (rangeExpression.contains("Float.NaN")) {
+            return "Float";
+        }
+        if (rangeExpression.contains("Double.NaN")) {
+            return "Double";
+        }
         return "Int";
     }
 
@@ -92,6 +98,7 @@ public class GenerateRangesCodegenTestData {
 
         out.println("// Auto-generated by " + GenerateRangesCodegenTestData.class.getName() + ". DO NOT EDIT!");
         out.println("import java.util.ArrayList");
+        out.println("import java.lang as j");
         out.println();
         out.println("fun box(): String {");
         out.print(generatedBody);