Fix RAISE_VARARGS bug

tests/input/test_raise_varargs.py

@@ -0,0 +1,7 @@
+import struct
+
+def bytes_to_words(b):
+    '''Convert a byte string (little-endian) to a list of 32-bit words.'''
+    if len(b) % 4 != 0:
+        raise ValueError('Input bytes length must be a multiple of 4 for word conversion.')
+    return struct.unpack('<' + 'I' * (len(b) // 4), b)