redundant cast: ensure that temp variable would have unique name (IDEA-118197)

java/java-tests/testData/inspection/redundantCast/generics/SafeTempVarName/expected.xml

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<problems/>

java/java-tests/testData/inspection/redundantCast/generics/SafeTempVarName/src/Test.java

@@ -0,0 +1,9 @@
+import java.util.*;
+
+public class RedundantCast{
+    <T> void foo2(List<Object[]> x) {
+        for (Object[] l : x) {
+           String[] s = (String[]) l;
+        }
+    }
+}