toString should be decodeToString

Author: consuelita

Codex/src/main/java/org/operatorfoundation/codex/symbols/CallAny.kt

@@ -28,7 +28,7 @@ class CallAny : Symbol {
     override fun toString(): String = "CallAny"
 
     override fun decode(encodedValue: ByteArray): BigInteger {
-        return charToValue[encodedValue.toString()]
+        return charToValue[encodedValue.decodeToString()]
             ?: throw IllegalArgumentException("CallAny, bad value: $encodedValue")
     }
 

Codex/src/main/java/org/operatorfoundation/codex/symbols/CallLetter.kt

@@ -23,7 +23,7 @@ class CallLetter : Symbol {
     override fun toString(): String = "CallLetter"
 
     override fun decode(encodedValue: ByteArray): BigInteger {
-        return charToValue[encodedValue.toString()]
+        return charToValue[encodedValue.decodeToString()]
             ?: throw IllegalArgumentException("CallLetter, bad value: $encodedValue")
     }