wasm-split error without an element segment

[kripken]

(module
 (table 0 funcref)
 (export "func_94_invoker" (func $0))
 (func $0
  (nop)
 )
)

$ bin/wasm-split a.wat -all --split -o1 a.wasm -o2 b.wasm -S --split-funcs=0
warning: not keeping any functions in the primary module
wasm-split: src/support/name.cpp:44: std::ostream& wasm::Name::print(std::ostream&) const: Assertion `*this && "Cannot print an empty name"' failed.
Aborted

It seems to have a null Name for the table when it creates a CallIndirect. At a glance at the code I thought this might work:

diff --git a/src/ir/module-splitting.cpp b/src/ir/module-splitting.cpp
index e0fba8ae8..31b85b906 100644
--- a/src/ir/module-splitting.cpp
+++ b/src/ir/module-splitting.cpp
@@ -158,6 +158,10 @@ TableSlotManager::TableSlotManager(Module& module) : module(module) {
   }
 
   activeTable = it->get();
+  if (activeTable == nullptr) {
+    activeTable = makeTable();
+    activeBase = {activeTable->name, "", 0};
+  }
   ModuleUtils::iterTableSegments(
     module, activeTable->name, [&](ElementSegment* segment) {
       activeTableSegments.push_back(segment);
@@ -220,11 +227,6 @@ TableSlotManager::Slot TableSlotManager::getSlot(Name func, HeapType type) {
 
   // If there are no segments yet, allocate one.
   if (activeSegment == nullptr) {
-    if (activeTable == nullptr) {
-      activeTable = makeTable();
-      activeBase = {activeTable->name, "", 0};
-    }
-
     // None of the existing segments should refer to the active table
     assert(std::all_of(module.elementSegments.begin(),
                        module.elementSegments.end(),

That fixes this one but other testcases start to fail so I am not sure if I understand what "active base/table/segment" mean here - some seem to need to be set in the constructor but others not? Anyhow this might be something trivial I am missing, @tlively