src: fix compiler warning in src/heap_utils.cc

Fixes: #43577
Signed-off-by: Darshan Sen <[email protected]>

PR-URL: #43579
Reviewed-By: Tobias Nießen <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Michaël Zasso <[email protected]>
Reviewed-By: Mohammed Keyvanzadeh <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Michael Dawson <[email protected]>

src/heap_utils.cc

@@ -245,7 +245,7 @@ class FileOutputStream : public v8::OutputStream {
         status_ = num_bytes_written;
         return kAbort;
       }
-      DCHECK_LE(num_bytes_written, buf.len);
+      DCHECK_LE(static_cast<size_t>(num_bytes_written), buf.len);
       offset += num_bytes_written;
     }
     DCHECK_EQ(offset, size);