Added foreach test cases for ExplicitInitializationCheck.

src/testinputs/com/puppycrawl/tools/checkstyle/coding/InputExplicitInit.java

@@ -57,4 +57,14 @@ enum InputExplicitInit3 {
     int TOKEN_first = 0x00;
     int TOKEN_second = 0x01;
     int TOKEN_third = 0x02;
+}
+
+class ForEach {
+    public ForEach(Collection<String> strings)
+    {
+        for(String s : strings) //this should not even be checked
+        {
+
+        }
+    }
 }