Java: Fixed extracting method from duplicates containing reused variables (IDEA-188894)

java/java-tests/testData/refactoring/extractMethod/ParametrizedDuplicateDeclaredOutputVariable.java

@@ -0,0 +1,19 @@
+import java.util.List;
+
+class DeclaredOutputVariable {
+    void foo(List<String> a) {
+        <selection>
+        String s = a.get(1);
+        if (s == null) return;
+        System.out.println(s.charAt(1));
+        </selection>
+        System.out.println(s.length());
+    }
+
+    void bar(List<String> a) {
+        String s = a.get(2);
+        if (s == null) return;
+        System.out.println(s.charAt(2));
+        System.out.println(s.length());
+    }
+}