Generate generic signature to collection method stubs

#KT-6213 Fixed

compiler/testData/codegen/boxWithJava/builtinStubMethods/substitutedIterable/substitutedIterable.kt

@@ -0,0 +1,15 @@
+trait MyIterable<T> : Iterable<T>
+
+class E : RuntimeException()
+fun foo(): MyIterable<String> = throw E()
+
+fun box(): String {
+    try {
+        foo().iterator().next()
+        return "Fail: E should have been thrown"
+    } catch (e: E) {}
+
+    Test.checkCallFromJava()
+
+    return "OK"
+}