IDEA-124359 Add Inspection for detecting nullable values passed into Optional.of()

test that it correctly works with Guava

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/replaceWithOfNullable/afterGuavaNullable.java

@@ -0,0 +1,6 @@
+// "Replace with '.fromNullable()'" "true"
+class A{
+  void test(){
+    com.google.common.base.Optional.fromNullable(n<caret>ull);
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/replaceWithOfNullable/beforeGuavaNullable.java

@@ -0,0 +1,6 @@
+// "Replace with '.fromNullable()'" "true"
+class A{
+  void test(){
+    com.google.common.base.Optional.of(n<caret>ull);
+  }
+}