Alan Donovan 04427c85cf go/ssa: add Node interface: common parts of Value+Instruction, plus Operands/Referrers.
Also:
- extend Parent() to all Values and add to interface:
  (Builtin/Const/Global => nil; Function => Enclosing)
- hide Function.Enclosing since it's now redundant wrt Parent()
- make (*Function).String robust for synthetics without pkg object

LGTM=gri
R=gri
CC=golang-codereviews, khr
https://golang.org/cl/87580044
2014-06-11 13:14:06 -04:00
..
2013-07-18 13:14:09 +10:00
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