Simplify InvokeSpecialTransformer

We only need to check for the ACC_FINAL flag once at the start of
transformCode(), given the insn.owner == clazz.name condition. This
change also removes the redundant getNode() call - we already have a
reference to the ClassNode.

Signed-off-by: Graham <gpe@openrs2.dev>

deob/src/main/java/dev/openrs2/deob/transform/InvokeSpecialTransformer.kt

@@ -22,6 +22,10 @@ class InvokeSpecialTransformer : Transformer() {
     }
 
     override fun transformCode(classPath: ClassPath, library: Library, clazz: ClassNode, method: MethodNode): Boolean {
+        if ((clazz.access and Opcodes.ACC_FINAL) == 0) {
+            return false
+        }
+
         for (insn in method.instructions) {
             if (insn !is MethodInsnNode || insn.opcode != Opcodes.INVOKESPECIAL) {
                 continue
@@ -31,11 +35,6 @@ class InvokeSpecialTransformer : Transformer() {
                 continue
             }
 
-            val owner = classPath.getNode(insn.owner)!!
-            if ((owner.access and Opcodes.ACC_FINAL) == 0) {
-                continue
-            }
-
             insn.opcode = Opcodes.INVOKEVIRTUAL
             invokeSpecialsReplaced++
         }