KT-5425 Kotlin plugin crashes when project uses RxJava 17.0 or older

#KT-5425 Fixed

compiler/testData/diagnostics/tests/j+k/samInConstructorWithGenerics.kt

@@ -0,0 +1,21 @@
+// FILE: j/OnSubscribe.java
+package j;
+
+public interface OnSubscribe<T> {
+    void f();
+}
+
+// FILE: j/Observable.java
+package j;
+
+public class Observable<T> {
+
+    protected Observable(OnSubscribe<T> f) {
+    }
+}
+
+// FILE: Kotlin.kt
+
+import j.*
+
+class K : Observable<String>({})