Check that the vvp code generator emits a -0.0 real constant with its
sign bit set, so the compiled value matches the runtime real value. The
sign used to be detected with (value < 0), which is false for IEEE 754
-0.0, and a -0.0 constant was turned into +0.0.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Flavien Solt