cxxrtl: fix inaccuracy in CXXRTL_ALIAS documentation. NFC.

Nodes driven by a constant value have type CXXRTL_VALUE and their
`next` pointer set to NULL. (This is already documented.)

diff --git a/backends/cxxrtl/cxxrtl_capi.h b/backends/cxxrtl/cxxrtl_capi.h
index 1f194280342e4624225f794c17be6b65753904de..447c9e1f383d427223bebee909e93ba6e3c2f8d3 100644 (file)
--- a/backends/cxxrtl/cxxrtl_capi.h
+++ b/backends/cxxrtl/cxxrtl_capi.h
@@ -103,7 +103,7 @@ enum cxxrtl_type {
        CXXRTL_MEMORY = 2,
 
        // Aliases correspond to netlist nodes driven by another node such that their value is always
-       // exactly equal, or driven by a constant value.
+       // exactly equal.
        //
        // Aliases can be inspected via the `curr` pointer. They cannot be modified, and the `next`
        // pointer is always NULL.