remove obsolete files [skip ci]
[Truffle] All #throw specs passing.
Split apart InlinerInfo into SimpleCloneInfo and InlineCloneInfo.  Specialization used to make it clearer which code is performing which type of cloning
[Truffle] Read-only global variables.
[Truffle] More character class specs passing.
Merge remote-tracking branch 'origin/master' into non-indy-jit

Conflicts:
	core/src/main/java/org/jruby/ir/instructions/InstanceSuperInstr.java
Remove DCE and dynscope opto from JIT passes for now.