Optimize PropertyMetadataImpl instance creation

Create all property metadatas in <clinit> and save them to a static array
$propertyMetadata. Getter/setter of each delegated property will then just
obtain the corresponding instance from that array

 #KT-4232 Fixed

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

@@ -38,6 +38,7 @@ public final class JvmAbi {
     public static final String CLASS_OBJECT_SUFFIX = "$" + CLASS_OBJECT_CLASS_NAME;
 
     public static final String DELEGATED_PROPERTY_NAME_SUFFIX = "$delegate";
+    public static final String PROPERTY_METADATA_ARRAY_NAME = "$propertyMetadata";
     public static final String ANNOTATED_PROPERTY_METHOD_NAME_SUFFIX = "$annotations";
 
     public static final String INSTANCE_FIELD = "instance$";