8296960: [JVMCI] list HotSpotConstantPool.loadReferencedType to ConstantPool

Backport-of: b3ef337566c2cf78de1f636e039c799a1bfcb17e

Author: jerboaa

src/jdk.internal.vm.ci/share/classes/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotConstantPool.java

@@ -716,6 +716,7 @@ public void loadReferencedType(int cpi, int opcode) {
         loadReferencedType(cpi, opcode, true /* initialize */);
     }
 
+    @Override
     @SuppressWarnings("fallthrough")
     public void loadReferencedType(int cpi, int opcode, boolean initialize) {
         int index;

src/jdk.internal.vm.ci/share/classes/jdk.vm.ci.meta/src/jdk/vm/ci/meta/ConstantPool.java

@@ -46,6 +46,24 @@ public interface ConstantPool {
      */
     void loadReferencedType(int cpi, int opcode);
 
+    /**
+     * Ensures that the type referenced by the specified constant pool entry is loaded. This can be
+     * used to compile time resolve a type. It works for field, method, or type constant pool
+     * entries.
+     *
+     * @param cpi the index of the constant pool entry that references the type
+     * @param opcode the opcode of the instruction that references the type
+     * @param initialize if {@code true}, the referenced type is either guaranteed to be initialized
+     *            upon return or an initialization exception is thrown
+     */
+    default void loadReferencedType(int cpi, int opcode, boolean initialize) {
+        if (initialize) {
+            loadReferencedType(cpi, opcode);
+        } else {
+            throw new UnsupportedOperationException();
+        }
+    }
+
     /**
      * Looks up the type referenced by the constant pool entry at {@code cpi} as referenced by the
      * {@code opcode} bytecode instruction.