Take advantage of the immutability of the state in the message parser to simplifiy the logic

Author: steveluscher

packages/errors/src/message-formatter.ts

@@ -63,15 +63,14 @@ export function getHumanReadableErrorMessage<TErrorCode extends SolanaErrorCode>
                 if (char === '\\') {
                     nextState = { [START_INDEX]: ii, [TYPE]: StateType.EscapeSequence };
                 } else if (char === '$') {
-                    commitStateUpTo(ii);
                     nextState = { [START_INDEX]: ii, [TYPE]: StateType.Variable };
                 } else if (!char.match(/\w/)) {
                     nextState = { [START_INDEX]: ii, [TYPE]: StateType.Text };
                 }
                 break;
         }
         if (nextState) {
-            if (state[TYPE] !== nextState[TYPE]) {
+            if (state !== nextState) {
                 commitStateUpTo(ii);
             }
             state = nextState;