Inspection for highlighting problem API usage

It's planned to use this inspection for show patchset branches problems
during development process.

idea/testData/inspections/incompatibleAPI/lib/LibMethods.java

@@ -0,0 +1,12 @@
+package lib;
+
+public class LibMethods {
+    public static void staticMethod() {
+    }
+
+    public void overload1(int i) {}
+    public void overload1(String s) {}
+
+    public void overload2(int i) {}
+    public void overload2(String s) {}
+}