Fix preventing showing any methods in "Goto Symbols" by kotlin plugin

idea/src/org/jetbrains/jet/plugin/caches/JetShortNamesCache.java

@@ -411,7 +411,7 @@ public class JetShortNamesCache extends PsiShortNamesCache {
             @NotNull GlobalSearchScope scope,
             @NotNull Processor<PsiMethod> processor
     ) {
-        return false;
+        return ContainerUtil.process(getMethodsByName(name, scope), processor);
     }
 
     @NotNull

idea/testData/navigation/gotoSymbol/javaMethods.kt

@@ -0,0 +1,9 @@
+fun test() {
+    return 0
+}
+
+// SEARCH_TEXT: flushBuffer
+// CHECK_BOX
+// REF: (in java.io.BufferedOutputStream).flushBuffer()
+// REF: (in java.io.BufferedWriter).flushBuffer()
+// REF: (in java.io.OutputStreamWriter).flushBuffer()

idea/tests/org/jetbrains/jet/plugin/navigation/JetGotoSymbolTest.java

@@ -30,6 +30,10 @@ public class JetGotoSymbolTest extends JetLightCodeInsightFixtureTestCase {
         doTest();
     }
 
+    public void testJavaMethods() {
+        doTest();
+    }
+
     @Override
     protected String getTestDataPath() {
         return new File(PluginTestCaseBase.getTestDataPathBase(), "/navigation/gotoSymbol").getPath() + File.separator;

idea/tests/org/jetbrains/jet/plugin/navigation/NavigationTestUtils.java

@@ -77,16 +77,17 @@ public final class NavigationTestUtils {
                            searchTextList.isEmpty());
 
         List<String> expectedReferences = InTextDirectivesUtils.findListWithPrefixes(editor.getDocument().getText(), "// REF:");
+        boolean enableCheckbox = InTextDirectivesUtils.isDirectiveDefined(editor.getDocument().getText(), "// CHECK_BOX");
 
         String searchText = searchTextList.get(0);
 
         List<Object> elementsByName = new ArrayList<Object>();
 
         GotoSymbolModel2 model = new GotoSymbolModel2(project);
-        String[] names = model.getNames(false);
+        String[] names = model.getNames(enableCheckbox);
         for (String name : names) {
             if (name != null && name.startsWith(searchText)) {
-                elementsByName.addAll(Arrays.asList(model.getElementsByName(name, false, name + "*")));
+                elementsByName.addAll(Arrays.asList(model.getElementsByName(name, enableCheckbox, name + "*")));
             }
         }