Generate generic signature to collection method stubs

#KT-6213 Fixed

compiler/testData/codegen/boxWithJava/builtinStubMethods/substitutedIterable/Test.java

@@ -0,0 +1,8 @@
+public class Test {
+    public static void checkCallFromJava() {
+        try {
+            String x = _DefaultPackage.foo().iterator().next();
+            throw new AssertionError("E should have been thrown");
+        } catch (E e) { }
+    }
+}