[PATCH] Fix memory leak when load_from_binary raises

	ibf_load_code will leak memory allocated for the code if an exception is
	raised. The following script reproduces the leak:

	    bin = RubyVM::InstructionSequence.of(1.method(:abs)).to_binary

	    10.times do
	      100_000.times do
	        RubyVM::InstructionSequence.load_from_binary(bin)
	      rescue ArgumentError
	      end
	      puts `ps -o rss= -p #{$$}`
	    end

	Before:

	    18004
	    23380
	    28756
	    34260
	    39892
	    45396
	    50772
	    55892
	    61012
	    66132

	After:

	    12536
	    12920
	    13304
	    13688
	    14072
	    14456
	    14840
	    15352
	    15608
	    15864

	Message not found for revision: 354d47ae5bc4edcc94db4a5391ed71a8b9844e57

	Message not found for revision: ef2b26cc3eaed06c5c9d4ef2c6d8669ff357afa4

Found by wbcheck

Found by wbcheck

	Fix coverage measurement for negative line numbers

	Fixes [Bug #21220]

	Co-Authored-By: Mike Bourgeous <mike@mikebourgeous.com>
	Co-Authored-By: Jean Boussier <jean.boussier@gmail.com>

	Avoid opt_aset_with optimization inside multiple assignment

	Previously, since the opt_aset_with optimization was introduced,
	use of the opt_aset_with optimization inside multiple assignment
	would result in a segfault or incorrect instructions.

	Fixes [Bug #21012]

	Co-authored-by: Nobuyoshi Nakada <nobu.nakada@gmail.com>

	Remove incorrect setting of KW_SPLAT_MUT flag

	Fixes [Bug #20701]

	Co-authored-by: Pablo Herrero <pablodherrero@gmail.com>

	Fix next inside block argument stack underflow

	[Bug #20344]
	Fix compile_next adding removable adjust label