Rename JvmClassName.getFqName() and add a warning

All usages of this method as of right now seem wrong, as they don't work in the
case of classes which contain dollars in their names -- dollars get replaced to
dots

core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/JvmClassName.java

@@ -77,8 +77,11 @@ public class JvmClassName {
         this.internalName = internalName;
     }
 
+    /**
+     * WARNING: internal name cannot be converted to FQ name for a class which contains dollars in the name
+     */
     @NotNull
-    public FqName getFqName() {
+    public FqName getFqNameForClassNameWithoutDollars() {
         if (fqName == null) {
             fqName = new FqName(internalNameToFqName(internalName));
         }

core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/kotlin/AnnotationDescriptorDeserializer.java

@@ -210,7 +210,8 @@ public class AnnotationDescriptorDeserializer implements AnnotationDeserializer
 
     @NotNull
     private ClassDescriptor resolveClass(@NotNull JvmClassName className) {
-        ClassDescriptor annotationClass = javaClassResolver.resolveClass(className.getFqName(), IGNORE_KOTLIN_SOURCES);
+        ClassDescriptor annotationClass = javaClassResolver.resolveClass(className.getFqNameForClassNameWithoutDollars(),
+                                                                         IGNORE_KOTLIN_SOURCES);
         return annotationClass != null ? annotationClass : ErrorUtils.getErrorClass();
     }