[decompiler] Update vector ops, reduce casts (#3849)

Update the decompiler to use the new vf macros.

Also, fix a bunch of silly casting issues where accessing inline fields
with an offset of 0 would be better than a cast:

![image](https://github.com/user-attachments/assets/885bbb07-634f-47b8-99f5-5a947941cdde)

---------

Co-authored-by: water111 <awaterford1111445@gmail.com>

test/decompiler/test_FormExpressionBuildLong.cpp

@@ -2842,7 +2842,7 @@ TEST_F(FormRegressionTestJak1, Method19ResTag) {
       "     (goto cfg-73)\n"
       "     )\n"
       "    (let ((t3-13 t4-1)\n"
-      "          (t4-4 (&-> (-> arg0 tag) t4-1))\n"
+      "          (t4-4 (&-> arg0 tag t4-1))\n"
       "          )\n"
       "     (while\n"
       "      (not\n"