Parametric instructions

using WasmVM::Instr::Drop = WasmVM::Instr::Atomic<WasmVM::Opcode::Drop>
enumerator WasmVM::Opcode::Drop = 0x1A
struct WasmVM::Instr::Select : public Base
std::vector<ValueType> valtypes
enumerator WasmVM::Opcode::Select = 0x1B
enumerator WasmVM::Opcode::Select_t = 0x1C

Select_t appears while selecting with value types