ambiguous method calls: conflict resolver, tests

(IDEA-67919; IDEA-67863; IDEA-67920;
 IDEA-67831; IDEA-67833; IDEA-67674;
 IDEA-67587; IDEA-57646; IDEA-57407;
 IDEA-57279; IDEA-57296; IDEA-57297;
 IDEA-57316; IDEA-57331)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting7/ambiguousArrayInSubst/pck/AmbiguousMethodCall.java

@@ -0,0 +1,21 @@
+package pck;
+
+import java.util.List;
+
+import static pck.C.foo;
+import static pck.D.foo;
+
+class C {
+    static <T> void foo(List<T> x) { }
+}
+
+class D {
+    static <T> String foo(List<T[]> x) { return null; }
+}
+
+public class Main {
+    public static void main(String[] args){
+        List<String[]> x = null;
+        foo(x).toLowerCase();
+    }
+}