Add missing basic instructions (#45)

* Add missing basic instructions

* MAP_SIZE
* MAP_TO_LIST
* STR_LENGTH

* Change name of erlang function to not shadow builtin guard

test/asm_code/all_instructions.fate

@@ -96,6 +96,10 @@ FUNCTION foo () : {tuple, []}
 
   MAP_FROM_LIST () a
 
+  MAP_TO_LIST a { true => 4 }
+
+  MAP_SIZE a { true => 42 }
+
   NIL arg91
 
   IS_NIL a var6
@@ -118,6 +122,8 @@ FUNCTION foo () : {tuple, []}
 
   STR_REVERSE a @ak_nv5B93FPzRHrGNmMdTDfGdd5xGZvep3MVSpJqzcQmMp59bBCv
 
+  STR_LENGTH a "foo"
+
   INT_TO_ADDR arg127 var207
 
   VARIANT a a 0x1f7b72200 a