Remove InitForm::index (#6817)

This ensures that equal forms always have equal representations (because
the index depends on how the form is used, not on the value of the form
itself).

As a byproduct, also remove `NextCallParamIndex`.

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Nicholas Bishop <nicholasbishop@google.com>
Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
Co-authored-by: Dana Jansens <danakj@orodu.net>
Co-authored-by: Boaz Brickner <brickner@google.com>
Co-authored-by: Richard Smith <richard@metafoo.co.uk>
Co-authored-by: Carbon Infra Bot <carbon-external-infra@google.com>
Co-authored-by: MK4070 <60286678+MK4070@users.noreply.github.com>
Co-authored-by: Christopher Di Bella <cjdb@google.com>
This commit is contained in:
Geoff Romer
2026-03-06 17:35:48 +00:00
committed by GitHub
co-authored by dependabot[bot] Nicholas Bishop Jon Ross-Perkins Dana Jansens Boaz Brickner Richard Smith Carbon Infra Bot MK4070 Christopher Di Bella
parent 2327b62b5f
commit 21291b4cc3
211 changed files with 1729 additions and 1703 deletions
@@ -280,9 +280,6 @@ static auto HandleAnyBindingPattern(Context& context, Parse::NodeId node_id,
if (node_kind == Parse::NodeKind::LetBindingPattern ||
node_kind == Parse::NodeKind::FormBindingPattern) {
auto type_id = context.insts().GetAttachedType(result_inst_id);
// Allocate a dummy index to preserve index of subsequent `InitForm`s.
// TODO: Remove this once we remove `InitForm::index`.
context.full_pattern_stack().NextCallParamIndex();
if (is_ref) {
result_inst_id = AddPatternInst<SemIR::RefParamPattern>(
context, node_id,