Java: Improved completion for arguments of reflection calls getField() and getMethod() - extract the actual type from Class.forName and from generic type parameter to provide the code assistance (IDEA-167250)

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

@@ -0,0 +1,12 @@
+class Main {
+  void foo() throws ReflectiveOperationException {
+    bar().getField("<caret>");
+  }
+
+  Class<Test> bar() throws ClassNotFoundException { return (Class<Test>) Class.forName("Test"); }
+}
+
+class Test {
+  public int num;
+  public void method(){}
+}