Throw Error instead of string

Author: Mingun

KaitaiStream.js

@@ -519,7 +519,7 @@ KaitaiStream.prototype.readBytesTerm = function(terminator, include, consume, eo
   if (i < 0) {
     // we've read all the buffer and haven't found the terminator
     if (eosError) {
-      throw "End of stream reached, but no terminator " + terminator + " found";
+      throw new Error("End of stream reached, but no terminator " + terminator + " found");
     }
     return this.readBytes(len);
   }
@@ -621,7 +621,7 @@ KaitaiStream.processXorMany = function(data, key) {
 
 KaitaiStream.processRotateLeft = function(data, amount, groupSize) {
   if (groupSize !== 1)
-    throw("unable to rotate group of " + groupSize + " bytes yet");
+    throw new Error("unable to rotate group of " + groupSize + " bytes yet");
 
   var mask = groupSize * 8 - 1;
   var antiAmount = -amount & mask;
@@ -664,7 +664,7 @@ KaitaiStream.processZlib = function(buf) {
 
 KaitaiStream.mod = function(a, b) {
   if (b <= 0)
-    throw "mod divisor <= 0";
+    throw new Error("mod divisor <= 0");
   var r = a % b;
   if (r < 0)
     r += b;