Introduce debugging symbols (#424)

* Add fann type and to_fann fun

* Add fann() to funcall

* Add fann() to closure

* Add fann() to set_state

* Add fann() to remote_u

* Add fann() to remote

* Add fann() to proj

* Add fann() to set_proj

* Add fann() to def and def_u

* Add fann() to op

* Add fann() to let

* Add fann() to lam

* Add fann() to builtin_u

* Add missing functions specs

* Dead code removal

* Fix the spec for compute_state_layout

* Add fann() to var

* Add fann() to switch

* Add fann() to lit and get_state

* Add fann() to builtin

* Add fann() to con

* Add fann() to tuple

* Add fann() to nil

* Fix missing fann() in tuple fexpr()

* Add dbgloc instruction to fate

* Add instructions lines to the debugging result

* Fix compiler tests

* Fix calldata tests

* Rname Ann to FAnn when the type is fann()

* Add line to fann()

* Change attributes for DBGLOC instruction

* Add file to fann()

* Add file to aeso_syntax:ann()

* Fix dialyzer warning

* Remove fann() from fsplit_pat() and fpat()

* Fill out empty fann() when possible

* Save debug locations for child contracts

* Include DBGLOC instructions in the compiler output

* Return an empty string instead of no_file atom

* Wrap args of DBGLOC in immediate tuple

* Upgrade aebytecode ref in rebar.config

* Add DBG_DEF and DBG_UNDEF

* Do not DBG_DEF vars with % prefix

* Do not use DBG_DEF and DBG_UNDEF on args

* Fix dbg_undef for args

* Rename DBGLOC to DBG_LOC

* Remove column from DBG_LOC

* Add missing dbg_loc in to_scode1

* Keep a single DBG_LOC instruction per line

* Remove col from fann

* Add DBG_LOC op to step at function sig

* Remove the variable-register map from debug output

* Use get_value/3 to handle default

* Use lookup instead of lookup_all

* List only needed attributes

* Make debug ops impure

* Split complicated code and add comment

* Fix annotations

* Fix indenting

* Remove dbg_loc before closure

* Add dbg_loc in to_scode

* Add DBG_CALL and DBG_RETURN

* Separate the split at CALL_T and loop

* Revert "Separate the split at CALL_T and loop"

This reverts commit 4ea823a7ca798c756b20cee32f928f41092c4959.

* Revert "Add DBG_CALL and DBG_RETURN"

This reverts commit c406c6feb09b6a5bb859c38d634f08208c901e5a.

* Disable tail call optimization for better debug call stack

* Rename env.debug to env.debug_info

* Upgrade aebytecode: Add DBG_CONTRACT

* Add DBG_CONTRACT instruction

* Check if a var name is fresh in separate function

* Add DBG_CONTRACT and DBG_LOC before DBG_DEF

* Save fresh names of pattern variables

* Implement fsplit_pat_vars for assign

* Set fann for switches

* Revert "Save fresh names of pattern variables"

This reverts commit d2473f982996336131477df2b2115c04a55a62cb.

* Add DBG_DEF for switch pattern vars

* Fix the inability to pattern match constructors

* Upgrade aebytecode dep

* Upgrade aebytecode dep

* Update the lock file

* Add annotations to fexpr var

* Fix issues with pretty-printing of fexprs

* Use FAnn instead of get_fann(Body)

* Upgrade aebytecode version

* Fix pp_fpat

* Fix pattern matching on fpat

* Update rename when a new rename comes up

* Upgrade aebytecode

* Remove the getopt dep

* Fix calldata tests

* Remove file committed by mistake

* Remove location anns from contract call type

docs/aeso_compiler.md

@@ -53,8 +53,6 @@ The **pp_** options all print to standard output the following:
 
 The option `include_child_contract_symbols` includes the symbols of child contracts functions in the generated fate code. It is turned off by default to avoid making contracts bigger on chain.
 
-The option `debug_info` includes information related to debugging in the compiler output. Currently this option only includes the mapping from variables to registers.
-
 #### Options to control which compiler optimizations should run:
 
 By default all optimizations are turned on, to disable an optimization, it should be