[wasm][eh] Remove kCatchInArity

The arity depends on the exception type now. Take the max over all
exceptions since we only need a conservative estimate.

R=clemensb@chromium.org

Bug: v8:8091
Change-Id: Id5a3e12d89c5d48219e8981e16c2b679d80b67db
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2691051Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72976}

test/common/wasm/wasm-interpreter.cc

@@ -555,7 +555,6 @@ int64_t ExecuteI64ReinterpretF64(WasmValue a) {
   return a.to_f64_boxed().get_bits();
 }
 
-constexpr int32_t kCatchInArity = 1;
 constexpr int32_t kCatchAllExceptionIndex = -1;
 constexpr int32_t kRethrowOrDelegateExceptionIndex = -2;
 
@@ -733,6 +732,14 @@ class SideTable : public ZoneObject {
     auto copy_unreachable = [&] {
       control_stack.back().unreachable = control_parent().unreachable;
     };
+    int max_exception_arity = 0;
+    if (module) {
+      for (auto& exception : module->exceptions) {
+        max_exception_arity =
+            std::max(max_exception_arity,
+                     static_cast<int>(exception.sig->parameter_count()));
+      }
+    }
     for (BytecodeIterator i(code->start, code->end, &code->locals);
          i.has_next(); i.next()) {
       WasmOpcode opcode = i.current();
@@ -762,8 +769,9 @@ class SideTable : public ZoneObject {
         DCHECK_GE(control_stack.size() - 1, exception_stack.back());
         const Control* c = &control_stack[exception_stack.back()];
         if (!unreachable) c->else_label->Ref(i.pc(), exceptional_stack_height);
-        if (exceptional_stack_height + kCatchInArity > max_stack_height_) {
-          max_stack_height_ = exceptional_stack_height + kCatchInArity;
+        if (exceptional_stack_height + max_exception_arity >
+            max_stack_height_) {
+          max_stack_height_ = exceptional_stack_height + max_exception_arity;
         }
         TRACE("handler @%u: %s -> try @%u\n", i.pc_offset(),
               WasmOpcodes::OpcodeName(opcode),