Merge branch 'feature/illegal_instruction_panic_info_v3.1' into 'release/v3.1'
authorJiang Jiang Jian <jack@espressif.com>
Wed, 9 Jan 2019 05:55:48 +0000 (13:55 +0800)
committerJiang Jiang Jian <jack@espressif.com>
Wed, 9 Jan 2019 05:55:48 +0000 (13:55 +0800)
panic: dump some instruction memory on IllegalInstruction exception (backport v3.1)

See merge request idf/esp-idf!3959


Trivial merge