Add map-type code

Author: 5nord

k3/t3xf/opcode/opcode_gen.go

@@ -1555,6 +1555,17 @@ int2char:
     Convert integer int into a single character string and push it
     onto the stack.
 
+mapfromto:
+  opcode: 252
+  context:
+  - type_new
+  operations:
+    pre: [from, to]
+    post: [obj]
+  description: |+
+    Build a map type object from the types from and to and push the
+    resulting object onto the stack.
+
 int2enum:
   opcode: 426
   context: