feat(objectionary#627): add suffix for method names

src/main/java/org/eolang/jeo/representation/directives/DirectivesMethod.java

@@ -161,7 +161,7 @@ public Iterator<Directive> iterator() {
         final Directives directives = new Directives();
         final String eoname;
         if ("<init>".equals(this.name)) {
-            eoname = "new";
+            eoname = "new" + "-" + this.properties.suffix();
         } else {
             eoname = this.name;
         }

src/main/java/org/eolang/jeo/representation/directives/DirectivesMethodProperties.java

@@ -23,6 +23,8 @@
  */
 package org.eolang.jeo.representation.directives;
 
+import java.nio.charset.StandardCharsets;
+import java.util.Base64;
 import java.util.Iterator;
 import java.util.Optional;
 import java.util.concurrent.atomic.AtomicReference;
@@ -117,6 +119,10 @@ public void maxs(final int stack, final int locals) {
         this.max.set(new DirectivesMaxs(stack, locals));
     }
 
+    public String suffix() {
+        return Base64.getEncoder().encodeToString(this.descriptor.getBytes(StandardCharsets.UTF_8));
+    }
+
     @Override
     public Iterator<Directive> iterator() {
         return new Directives()

src/main/java/org/eolang/jeo/representation/xmir/XmlMethod.java

@@ -130,12 +130,17 @@ public String name() {
         final String original = this.node.attribute("name").orElseThrow(
             () -> new IllegalStateException("Method 'name' attribute is not present")
         );
-        if ("new".equals(original)) {
+        if (original.contains("new")) {
             result = "<init>";
         } else {
             result = original;
         }
-        return result;
+        final int endIndex = result.lastIndexOf('-');
+        if (endIndex > 0) {
+            return result.substring(0, endIndex);
+        } else {
+            return result;
+        }
     }
 
     /**