Add diagnostics that warn when a literal NX command argument names a block
template or address that no loaded .def file declares (diagnostic codes
unknown-block-template and unknown-address). Names computed at runtime
(e.g. $var or "CYCLE_$x") are not checked, and kinds whose .def file is
not loaded are skipped.
The server now recomputes and refreshes diagnostics when .def documents
change (clears cached diagnostics and requests a workspace diagnostic
refresh if the client supports it). Tests cover positive, negative and
invalidated-cache cases.
Add a new def_flow analysis module that follows .def block template
and address names through local variables and proc parameters, and a
wrapper-table builder to resolve proc arguments that forward .def names.
Derived names are resolved only for hover/definition (not for rename).
Integrate this into the LSP:
- lsp_server: add _word_at and _tcl_def_symbol helpers; fallback to
derived_def_symbol when direct NX-argument navigation fails for hover,
goto-definition and references; return proper ranges for hover.
- lsp_tclserver: cache and expose a def_wrapper_table built from index
def_flows (with cache invalidation on index generation).
Also add unit tests for def_flow and update CHANGELOG to note hover/
definition and completion preview improvements for derived names.
Christoph