fix: Memory.get_segment_byte_offset on Passive data sections

Author: spotandjake

src/memory.c

@@ -121,7 +121,11 @@ caml_binaryen_get_memory_segment_byte_offset(value _module, value _name) {
   CAMLparam2(_module, _name);
   BinaryenModuleRef module = BinaryenModuleRef_val(_module);
   char* name = Safe_String_val(_name);
-  CAMLreturn(Val_int(BinaryenGetMemorySegmentByteOffset(module, name)));
+  if (BinaryenGetMemorySegmentPassive(module, name)) {
+    CAMLreturn(Val_int(-1));
+  } else {
+    CAMLreturn(Val_int(BinaryenGetMemorySegmentByteOffset(module, name)));
+  }
 }
 
 CAMLprim value

test/test.ml

@@ -248,6 +248,9 @@ let _ = Memory.set_memory max_memory_wasm_mod 1 2 "memory" [] false false "0"
 let _ = assert (Memory.has_max max_memory_wasm_mod "0" = true)
 let _ = assert (Memory.get_max max_memory_wasm_mod "0" = 2)
 
+(* Memory.get_segment_byte_offset Passive *)
+let _ = assert (Memory.get_segment_byte_offset wasm_mod "world" = -1)
+
 let _ =
   assert (
     Bytes.equal