[wasm] Use Param and Return methods consistently

src/wasm/ast-decoder.cc

Index: src/wasm/ast-decoder.cc
diff --git a/src/wasm/ast-decoder.cc b/src/wasm/ast-decoder.cc
index 320b086a8c8865dc4d9d468689bd661e4a89ffc7..5e0d76b1919eba122b096c97907451068bc1334b 100644
--- a/src/wasm/ast-decoder.cc
+++ b/src/wasm/ast-decoder.cc
@@ -524,7 +524,7 @@ class WasmFullDecoder : public WasmDecoder {
       // Initialize local variables.
       uint32_t index = 0;
       while (index < sig_->parameter_count()) {
-        ssa_env->locals[index] = builder_->Param(index, local_type_vec_[index]);
+        ssa_env->locals[index] = builder_->Param(index);
         index++;
       }
       while (index < local_type_vec_.size()) {