parameter info: current method preselection when there are varargs overloading (IDEA-168649)

java/java-impl/src/com/intellij/codeInsight/hint/api/impls/MethodParameterInfoHandler.java

@@ -245,7 +245,7 @@ public class MethodParameterInfoHandler implements ParameterInfoHandlerWithTabAc
       PsiType parmType = parm.getType();
       PsiType argType = arg.getType();
       if (argType == null) continue;
-      if (parmType instanceof PsiEllipsisType && parmType.getArrayDimensions() == argType.getArrayDimensions() + 1) {
+      if (parmType instanceof PsiEllipsisType ) {
         parmType = ((PsiEllipsisType)parmType).getComponentType();
       }
       parmType = substitutor.substitute(parmType);

java/java-tests/testData/codeInsight/parameterInfo/OverloadWithVarargs.java

@@ -0,0 +1,8 @@
+class Main {
+  static <T> void of(T t) {}
+  static <T> void of(T... t) {}
+
+  void foo(String... strs){
+    Main.of(st<caret>rs);
+  }
+}

java/java-tests/testData/codeInsight/parameterInfo/OverloadWithVarargsArray.java

@@ -0,0 +1,8 @@
+class Main {
+  static <T> void of(T t) {}
+  static <T> void of(T... t) {}
+
+  void foo(String[] strs){
+    Main.of(st<caret>rs);
+  }
+}

java/java-tests/testData/codeInsight/parameterInfo/OverloadWithVarargsMultipleArgs.java

@@ -0,0 +1,8 @@
+class Main {
+  static <T> void of(T t) {}
+  static <T> void of(T... t) {}
+
+  void foo(){
+    Main.of("<caret>", "");
+  }
+}

java/java-tests/testData/codeInsight/parameterInfo/OverloadWithVarargsSingleArg.java

@@ -0,0 +1,8 @@
+class Main {
+  static <T> void of(T t) {}
+  static <T> void of(T... t) {}
+
+  void foo(){
+    Main.of("<caret>");
+  }
+}

java/java-tests/testSrc/com/intellij/codeInsight/ParameterInfoTest.java

@@ -76,6 +76,26 @@ public class ParameterInfoTest extends LightCodeInsightFixtureTestCase {
   }
 
   public void testSelectionWithGenerics() {
+    doTest2CandidatesWithPreselection();
+  }
+
+  public void testOverloadWithVarargs() {
+    doTest2CandidatesWithPreselection();
+  }
+
+  public void testOverloadWithVarargsMultipleArgs() {
+    doTest2CandidatesWithPreselection();
+  }
+
+  public void testOverloadWithVarargsSingleArg() {
+    doTest2CandidatesWithPreselection();
+  }
+
+  public void testOverloadWithVarargsArray() {
+    doTest2CandidatesWithPreselection();
+  }
+
+  private void doTest2CandidatesWithPreselection() {
     myFixture.configureByFile(getTestName(false) + ".java");
 
     MethodParameterInfoHandler handler = new MethodParameterInfoHandler();