This eliminates some indeterminism in the error messages, which was
causing occasional failures in CI. We don't expect this list to be
very large, so the O(n) insertion time should not be a problem.
When elaborating a subclass, the base class scope needs to be elaborated
before the subclass scope. If the base class and subclass are defined in
different packages, this requires the package scopes to be elaborated in
the correct order. SystemVerilog reqires packages to be defined before
they are used, so that is the order we should elaborate them in.
Explicit imports should always conflict with local declarations using
the same name. Wildcard imports only conflict if they are referenced
before a local declaration with the same name.
This also unifies the detection of identifier conflicts.
Rework lexical support for PACKAGE_IDENTIFIER so that the lexor
can help with package scoped identifiers.
Pform package types and package functions up to elaboration.
This was temporarily implemented to just copy definitions to the
local scope, but the better method is to create a PEIdent that has
the package attached to it.
Martin Whitaker
Cary R
Stephen Williams