diamond: reject diamonds nested inside type arguments as soon as possible (IDEA-155153)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting7/NestedDiamond.java

@@ -0,0 +1,9 @@
+import java.util.ArrayList;
+import java.util.List;
+
+class Test {
+
+  {
+    List<List<String>> l = new ArrayList<List<<error descr="Cannot infer arguments"></error>>>();
+  }
+}