BytesBuiltins: fix __MUL__ and __RMUL__ builtins

Author: cosminbasca

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/bytes/BytesBuiltins.java

@@ -431,14 +431,25 @@ public Object mul(VirtualFrame frame, PBytes self, Object times,
                         @Cached("createBinaryProfile()") ConditionProfile hasFrame,
                         @Cached("create()") SequenceStorageNodes.RepeatNode repeatNode,
                         @CachedLibrary("times") PythonObjectLibrary lib) {
-            int timesInt;
+            SequenceStorage res = repeatNode.execute(frame, self.getSequenceStorage(), getTimesInt(frame, times, hasFrame, lib));
+            return factory().createBytes(res);
+        }
+
+        @Specialization(limit = "getCallSiteInlineCacheMaxDepth()")
+        public Object mul(VirtualFrame frame, PByteArray self, Object times,
+                        @Cached("createBinaryProfile()") ConditionProfile hasFrame,
+                        @Cached("create()") SequenceStorageNodes.RepeatNode repeatNode,
+                        @CachedLibrary("times") PythonObjectLibrary lib) {
+            SequenceStorage res = repeatNode.execute(frame, self.getSequenceStorage(), getTimesInt(frame, times, hasFrame, lib));
+            return factory().createByteArray(res);
+        }
+
+        private int getTimesInt(VirtualFrame frame, Object times, ConditionProfile hasFrame, PythonObjectLibrary lib) {
             if (hasFrame.profile(frame != null)) {
-                timesInt = lib.asSizeWithState(times, PArguments.getThreadState(frame));
+                return lib.asSizeWithState(times, PArguments.getThreadState(frame));
             } else {
-                timesInt = lib.asSize(times);
+                return lib.asSize(times);
             }
-            SequenceStorage res = repeatNode.execute(frame, self.getSequenceStorage(), timesInt);
-            return factory().createBytes(res);
         }
 
         @SuppressWarnings("unused")