Constant for language name and several usage for this constant

compiler/frontend/src/org/jetbrains/jet/plugin/JetFileType.java

@@ -43,13 +43,13 @@ public class JetFileType extends LanguageFileType {
     @Override
     @NotNull
     public String getName() {
-        return "Kotlin";
+        return JetLanguage.NAME;
     }
 
     @Override
     @NotNull
     public String getDescription() {
-        return "Kotlin";
+        return getName();
     }
 
     @Override

compiler/frontend/src/org/jetbrains/jet/plugin/JetLanguage.java

@@ -23,8 +23,14 @@ import com.intellij.lang.Language;
 
 public class JetLanguage extends Language {
     public static JetLanguage INSTANCE = new JetLanguage();
+    public static String NAME = "Kotlin";
 
     private JetLanguage() {
         super("jet");
     }
+
+    @Override
+    public String getDisplayName() {
+        return NAME;
+    }
 }

idea/src/org/jetbrains/jet/plugin/formatter/JetCodeStyleSettingsProvider.java

@@ -31,7 +31,7 @@ public class JetCodeStyleSettingsProvider extends CodeStyleSettingsProvider {
 
     @Override
     public String getConfigurableDisplayName() {
-        return "Kotlin";
+        return JetLanguage.NAME;
     }
 
     @Override
@@ -47,7 +47,7 @@ public class JetCodeStyleSettingsProvider extends CodeStyleSettingsProvider {
     @NotNull
     @Override
     public Configurable createSettingsPage(CodeStyleSettings settings, CodeStyleSettings originalSettings) {
-        return new CodeStyleAbstractConfigurable(settings, originalSettings, "Kotlin") {
+        return new CodeStyleAbstractConfigurable(settings, originalSettings, JetLanguage.NAME) {
             @Override
             protected CodeStyleAbstractPanel createPanel(CodeStyleSettings settings) {
                 return new TabbedLanguageCodeStylePanel(JetLanguage.INSTANCE, getCurrentSettings(), settings) {

idea/src/org/jetbrains/jet/plugin/formatter/JetLanguageCodeStyleSettingsProvider.java

@@ -69,7 +69,7 @@ public class JetLanguageCodeStyleSettingsProvider extends LanguageCodeStyleSetti
 
     @Override
     public String getLanguageName() {
-        return "Kotlin";
+        return JetLanguage.NAME;
     }
 
     @Override

idea/src/org/jetbrains/jet/plugin/highlighter/JetColorSettingsPage.java

@@ -25,6 +25,7 @@ import com.intellij.openapi.options.colors.ColorSettingsPage;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.jet.plugin.JetBundle;
 import org.jetbrains.jet.plugin.JetIcons;
+import org.jetbrains.jet.plugin.JetLanguage;
 
 import javax.swing.*;
 import java.lang.reflect.Field;
@@ -171,6 +172,6 @@ public class JetColorSettingsPage implements ColorSettingsPage {
     @NotNull
     @Override
     public String getDisplayName() {
-        return "Kotlin";
+        return JetLanguage.NAME;
     }
 }

idea/src/org/jetbrains/jet/plugin/liveTemplates/JetTemplateContextType.java

@@ -78,7 +78,7 @@ public abstract class JetTemplateContextType extends TemplateContextType {
 
     public static class Generic extends JetTemplateContextType {
         public Generic() {
-            super("KOTLIN", "Kotlin", EverywhereContextType.class);
+            super("KOTLIN", JetLanguage.NAME, EverywhereContextType.class);
         }
 
         @Override

idea/src/org/jetbrains/jet/plugin/run/JetRunConfigurationType.java

@@ -20,6 +20,7 @@ import com.intellij.execution.configurations.*;
 import com.intellij.openapi.project.Project;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.jet.plugin.JetIcons;
+import org.jetbrains.jet.plugin.JetLanguage;
 
 /**
  * @author yole
@@ -30,7 +31,7 @@ public class JetRunConfigurationType extends ConfigurationTypeBase {
     }
 
     public JetRunConfigurationType() {
-        super("JetRunConfigurationType", "Kotlin", "Kotlin", JetIcons.LAUNCH);
+        super("JetRunConfigurationType", JetLanguage.NAME, JetLanguage.NAME, JetIcons.LAUNCH);
         addFactory(new JetRunConfigurationFactory(this));
     }