Fix xdebug (#5309)

Fix xdebug (#5309)

* [mini] fix xdebug null pointer dereferencing

Some trampolines are nameless, avoid crashing when generating their
debug info.

This change is released under the MIT license.

* [mini]: image-writer - move definition of USE_BIN_WRITER to header file

USE_BIN_WRITER is being used by xdebug for conditional compilation.

This change is released under the MIT license.

* [mini]: xdebug - obtain definition of USE_BIN_WRITER from header file

This re-enables xdebug on supported platforms.

This change is released under the MIT license.