@Nullable/@NotNull added to various classes

idea/src/org/jetbrains/jet/plugin/JetBundle.java

@@ -18,6 +18,7 @@ package org.jetbrains.jet.plugin;
 
 import com.intellij.CommonBundle;
 import org.jetbrains.annotations.NonNls;
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.PropertyKey;
 
 import java.lang.ref.Reference;
@@ -33,6 +34,7 @@ public class JetBundle {
     private JetBundle() {
     }
 
+    @NotNull
     public static String message(@NonNls @PropertyKey(resourceBundle = BUNDLE)String key, Object... params) {
       return CommonBundle.message(getBundle(), key, params);
     }

idea/src/org/jetbrains/jet/plugin/project/AnalyzerFacadeWithCache.java

@@ -80,6 +80,7 @@ public final class AnalyzerFacadeWithCache {
         }
     }
 
+    @NotNull
     public static BindingContext getContextForElement(@NotNull JetElement jetElement) {
         CancelableResolveSession cancelableResolveSession = getLazyResolveSessionForFile((JetFile) jetElement.getContainingFile());
         return cancelableResolveSession.resolveToElement(jetElement);

idea/src/org/jetbrains/jet/plugin/project/CancelableResolveSession.java

@@ -58,6 +58,7 @@ public class CancelableResolveSession implements KotlinCodeAnalyzer, Modificatio
         this.resolveElementCache = new ResolveElementCache(resolveSession, project);
     }
 
+    @NotNull
     public BindingContext resolveToElement(final JetElement element) {
         return computableWithProcessingCancel(new Computable<BindingContext>() {
             @Override