inference: unchecked warning in type params bounds (IDEA-152758)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/genericsHighlighting8/UncheckedWarningsInsideIncorporationPhase.java

@@ -0,0 +1,17 @@
+abstract class Group {
+
+  public Group() {
+  }
+
+  public <T extends Category> T get(Key<T> key) {
+    <error descr="Incompatible types. Found: 'Category', required: 'T'">return getCategory(key);</error>
+  }
+
+  public abstract <R extends Category<R>> R getCategory(Key<R> key);
+}
+
+interface Category<Tc extends Category> {
+}
+
+class Key<Tk extends Category> {
+}