[wasm] Int64Lowering of Int64Add on ia32 and arm.

src/compiler/typer.cc

Index: src/compiler/typer.cc
diff --git a/src/compiler/typer.cc b/src/compiler/typer.cc
index 2477acb210745e9c9c32a4513a2225deb9abb6a3..aa65d8d2dc9dc01cff19197761b725916e5e12fc 100644
--- a/src/compiler/typer.cc
+++ b/src/compiler/typer.cc
@@ -2441,6 +2441,8 @@ Type* Typer::Visitor::TypeCheckedStore(Node* node) {
   return nullptr;
 }
 
+Type* Typer::Visitor::TypeInt32PairAdd(Node* node) { return Type::Internal(); }
+
 Type* Typer::Visitor::TypeWord32PairShl(Node* node) { return Type::Internal(); }
 
 Type* Typer::Visitor::TypeWord32PairShr(Node* node) { return Type::Internal(); }