Added test with @KotlinSignature on method returning array.

#KT-2840 can't reproduce

compiler/testData/loadJava/kotlinSignature/ArrayType.java

@@ -0,0 +1,10 @@
+package test;
+
+import jet.runtime.typeinfo.KotlinSignature;
+
+public class ArrayType {
+    @KotlinSignature("fun foo(): Array<String>")
+    public String[] foo() {
+        throw new UnsupportedOperationException();
+    }
+}

compiler/testData/loadJava/kotlinSignature/ArrayType.kt

@@ -0,0 +1,7 @@
+package test
+
+public open class ArrayType : Object() {
+    public open fun foo(): Array<String> {
+        throw UnsupportedOperationException()
+    }
+}

compiler/testData/loadJava/kotlinSignature/ArrayType.txt

@@ -0,0 +1,6 @@
+namespace test
+
+public open class test.ArrayType : java.lang.Object {
+    public final /*constructor*/ fun <init>(): test.ArrayType
+    public open fun foo(): jet.Array<jet.String>
+}

compiler/tests/org/jetbrains/jet/jvm/compiler/LoadJavaTestGenerated.java

@@ -250,6 +250,11 @@ public class LoadJavaTestGenerated extends AbstractLoadJavaTest {
             JetTestUtils.assertAllTestsPresentByMetadata(this.getClass(), "org.jetbrains.jet.generators.tests.GenerateTests", new File("compiler/testData/loadJava/kotlinSignature"), "java", true);
         }
         
+        @TestMetadata("ArrayType.java")
+        public void testArrayType() throws Exception {
+            doTest("compiler/testData/loadJava/kotlinSignature/ArrayType.java");
+        }
+        
         @TestMetadata("ConstructorWithNewTypeParams.java")
         public void testConstructorWithNewTypeParams() throws Exception {
             doTest("compiler/testData/loadJava/kotlinSignature/ConstructorWithNewTypeParams.java");

compiler/tests/org/jetbrains/jet/lang/resolve/lazy/LazyResolveNamespaceComparingTestGenerated.java

@@ -1145,6 +1145,11 @@ public class LazyResolveNamespaceComparingTestGenerated extends AbstractLazyReso
                 JetTestUtils.assertAllTestsPresentByMetadata(this.getClass(), "org.jetbrains.jet.generators.tests.GenerateTests", new File("compiler/testData/loadJava/kotlinSignature"), "kt", true);
             }
             
+            @TestMetadata("ArrayType.kt")
+            public void testArrayType() throws Exception {
+                doTestSinglePackage("compiler/testData/loadJava/kotlinSignature/ArrayType.kt");
+            }
+            
             @TestMetadata("ConstructorWithNewTypeParams.kt")
             public void testConstructorWithNewTypeParams() throws Exception {
                 doTestSinglePackage("compiler/testData/loadJava/kotlinSignature/ConstructorWithNewTypeParams.kt");