Assertion 'ECMA_STRING_IS_REF_EQUALS_TO_ONE (string_p)' failed in ecma_free_string_list

[renatahodovan]

IoT.js version:

Checked revision: bc9a5da

Build command: CC=clang-7 \
tools/build.py --clean \
--buildtype=debug \
--compile-flag="-D'IOTJS_ASSERT(x)=assert(x)'" \
--compile-flag=-O2 --compile-flag=-fno-common --no-snapshot \
--compile-flag=-fsanitize=address --compile-flag=-fno-omit-frame-pointer \
--jerry-cmake-param=-DFEATURE_SYSTEM_ALLOCATOR=ON --target-arch=i686 \
--profile=test/profiles/host-linux.profile --jerry-profile=es2015-subset \
--jerry-cmake-param=-DEXTERNAL_COMPILE_FLAGS=-Wno-conversion

OS:

Linux-4.15.0-54-generic-x86_64-with-Ubuntu-18.04-bionic

Test case:

var uart = require('uart')
uart.open(this)

Backtrace:

TypeError: Missing argument, required device
    at uart:23
    at iotjs/test.js:2
    at module:312
    at module:277
    at module:332
    at iotjs.js:180
    at iotjs.js:16
ICE: Assertion 'ECMA_STRING_IS_REF_EQUALS_TO_ONE (string_p)' failed at iotjs/deps/jerry/jerry-core/ecma/base/ecma-literal-storage.c(ecma_free_string_list):43.
Error: ERR_FAILED_INTERNAL_ASSERTION

^{Found by Fuzzinator with JsProFuzz.}