inline: insert cast in foreach stmts when var/initializer was casted with explicit cast conversion (IDEA-73501)

java/java-tests/testData/refactoring/inlineLocal/UncheckedCastNotNeeded.java.after

@@ -0,0 +1,12 @@
+import java.util.*;
+
+class X {
+  List getChildren() {
+    return null;
+  }
+
+  void iterate() {
+      foo(getChildren());
+  }
+  void foo(List<X> l){}
+}