Java: Remove duplicates from the completion list for argument of getMethod(). Simplified priority in the argument completion for getField() and getMethod() (IDEA-167250)

java/java-tests/testData/codeInsight/completion/reflectionOverload/OverriddenMethod.java

@@ -0,0 +1,23 @@
+class Main {
+  void foo() {
+    Test.class.getMethod("<caret>");
+  }
+}
+
+class Test extends Parent {
+  public void method(){}
+  public void pMethod(C c){}
+  public void gpMethod(A a, B b){}
+}
+
+class Parent extends GrandParent {
+  public void pMethod(C c){}
+}
+
+class GrandParent {
+  public void gpMethod(A a, B b){}
+}
+
+class A {}
+class B {}
+class C {}