Allow returning different type without std::move

Author: gumb0

CMakeLists.txt

@@ -62,6 +62,7 @@ if(WEVERYTHING)
         -Wno-double-promotion
         -Wno-float-equal
         -Wno-padded
+        -Wno-return-std-move-in-c++11
         -Wno-switch-enum
     )
 endif()

lib/fizzy/parser.cpp

@@ -658,7 +658,7 @@ std::unique_ptr<const Module> parse(bytes_view input)
         module->codesec.emplace_back(
             parse_code(code_binaries[i], static_cast<FuncIdx>(i), *module));
 
-    return std::unique_ptr<const Module>(module.release());
+    return module;
 }
 
 parser_result<std::vector<uint32_t>> parse_vec_i32(const uint8_t* pos, const uint8_t* end)