check possible inference for method references before simplification (IDEA-171976)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/redundantTypeArgs/beforeMethodReference1.java

@@ -0,0 +1,9 @@
+// "Remove explicit type arguments" "false"
+import java.util.Map.Entry;
+import java.util.stream.Collectors;
+
+class Foo {
+  {
+    Collectors.toMap(Entry<Integer, <caret>Integer>::getKey, null);
+  }
+}