Java: Provide completion for nested class names in reflection API (IDEA-181545)

java/java-tests/testData/codeInsight/completion/reflection/ClassForNameNested.java

@@ -1,6 +1,6 @@
 import foo.bar.*;
 class Main {
   void foo() throws ReflectiveOperationException {
-    Class.forName("foo.bar.PublicClass.<caret>");
+    Class.forName("foo.bar.PublicClass$<caret>");
   }
 }

java/java-tests/testData/codeInsight/completion/reflection/ClassForNameNestedAutocomplete.java

@@ -0,0 +1,6 @@
+import foo.bar.*;
+class Main {
+  void foo() throws ReflectiveOperationException {
+    Class.forName("foo.bar.PublicClass$Nested<caret>");
+  }
+}

java/java-tests/testData/codeInsight/completion/reflection/ClassForNameNestedAutocomplete_after.java

@@ -0,0 +1,6 @@
+import foo.bar.*;
+class Main {
+  void foo() throws ReflectiveOperationException {
+    Class.forName("foo.bar.PublicClass$NestedClass");
+  }
+}

java/java-tests/testData/codeInsight/completion/reflection/ClassForNameNested_after.java

@@ -1,6 +1,6 @@
 import foo.bar.*;
 class Main {
   void foo() throws ReflectiveOperationException {
-    Class.forName("foo.bar.PublicClass.NestedClass");
+    Class.forName("foo.bar.PublicClass$NestedClass");
   }
 }