overload resolution with varargs: don't prefer promitive varargs when no arg is provided (IDEA-140759)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/overloadResolution/PrimitiveVarargsAreNoMoreSpecificThanNonPrimitiveWhenNoArgIsActuallyProvided.java

@@ -0,0 +1,10 @@
+
+class Test {
+  public void test(String... <warning descr="Parameter 'a' is never used">a</warning>){}
+
+  public void test(int... <warning descr="Parameter 'a' is never used">a</warning>){}
+
+  public static void main(String[] args) {
+    new Test().test<error descr="Ambiguous method call: both 'Test.test(String...)' and 'Test.test(int...)' match">()</error>;
+  }
+}

java/java-tests/testSrc/com/intellij/codeInsight/daemon/lambda/OverloadResolutionTest.java

@@ -118,6 +118,10 @@ public class OverloadResolutionTest extends LightDaemonAnalyzerTestCase {
     doTest();
   }
 
+  public void testPrimitiveVarargsAreNoMoreSpecificThanNonPrimitiveWhenNoArgIsActuallyProvided() throws Exception {
+    doTest();
+  }
+
   private void doTest() {
     doTest(true);
   }