cmd/compile: remove nodesOrNodeList outside of syntax.go

Passes toolstash -cmp.

Update #14473.

Change-Id: I717ebd948dfc8faf8b9ef5aa02c67484af618d18
Reviewed-on: https://go-review.googlesource.com/20359
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
diff --git a/src/cmd/compile/internal/gc/ssa.go b/src/cmd/compile/internal/gc/ssa.go
index 317e02e..220e266 100644
--- a/src/cmd/compile/internal/gc/ssa.go
+++ b/src/cmd/compile/internal/gc/ssa.go
@@ -508,7 +508,7 @@
 }
 
 // ssaStmtList converts the statement n to SSA and adds it to s.
-func (s *state) stmtList(l nodesOrNodeList) {
+func (s *state) stmtList(l Nodes) {
 	for it := nodeSeqIterate(l); !it.Done(); it.Next() {
 		s.stmt(it.N())
 	}