fixed qFix tests

python/testData/inspections/AddEncoding.py

@@ -1 +1 @@
-c = <warning descr="Byte literal contains characters > 255">"строч<caret>ка"</warning>
+<warning descr="No encoding specified for file"><caret></warning>c = "string"

python/testData/inspections/AddEncoding_after.py

@@ -1,2 +1,2 @@
 # coding=utf-8
-c = "строчка"
+c = "string"

python/testSrc/com/jetbrains/python/PyQuickFixTest.java

@@ -293,7 +293,7 @@ public class PyQuickFixTest extends PyTestCase {
   }
 
   public void testAddEncoding() {                      //PY-491
-    doInspectionTest("AddEncoding.py", PyByteLiteralInspection.class,
+    doInspectionTest("AddEncoding.py", PyMandatoryEncodingInspection.class,
                      PyBundle.message("QFIX.add.encoding"), true, true);
   }