gcc.Tree operators by symbol

The following shows the symbol used for each expression subclass in debug dumps, as returned by the various get_symbol() class methods.

There are some duplicates (e.g. - is used for both gcc.MinusExpr as an infix binary operator, and by gcc.NegateExpr as a prefixed unary operator).

Class	get_symbol()
gcc.AddrExpr	&
gcc.BitAndExpr	&
gcc.BitIorExpr	|
gcc.BitNotExpr	~
gcc.BitXorExpr	^
gcc.CeilDivExpr	/[cl]
gcc.CeilModExpr	%[cl]
gcc.EqExpr	==
gcc.ExactDivExpr	/[ex]
gcc.FloorDivExpr	/[fl]
gcc.FloorModExpr	%[fl]
gcc.GeExpr	>=
gcc.GtExpr	>
gcc.IndirectRef	*
gcc.LeExpr	<=
gcc.LrotateExpr	r<<
gcc.LshiftExpr	<<
gcc.LtExpr	<
gcc.LtgtExpr	<>
gcc.MaxExpr	max
gcc.MinExpr	min
gcc.MinusExpr	-
gcc.ModifyExpr	=
gcc.MultExpr	*
gcc.NeExpr	!=
gcc.NegateExpr	-
gcc.OrderedExpr	ord
gcc.PlusExpr	+
gcc.PointerPlusExpr	+
gcc.PostdecrementExpr	–
gcc.PostincrementExpr	++
gcc.PredecrementExpr	–
gcc.PreincrementExpr	++
gcc.RdivExpr	/
gcc.ReducPlusExpr	r+
gcc.RoundDivExpr	/[rd]
gcc.RoundModExpr	%[rd]
gcc.RrotateExpr	r>>
gcc.RshiftExpr	>>
gcc.TruncDivExpr	/
gcc.TruncModExpr	%
gcc.TruthAndExpr	&&
gcc.TruthAndifExpr	&&
gcc.TruthNotExpr	!
gcc.TruthOrExpr	||
gcc.TruthOrifExpr	||
gcc.TruthXorExpr	^
gcc.UneqExpr	u==
gcc.UngeExpr	u>=
gcc.UngtExpr	u>
gcc.UnleExpr	u<=
gcc.UnltExpr	u<
gcc.UnorderedExpr	unord
gcc.VecLshiftExpr	v<<
gcc.VecRshiftExpr	v>>
gcc.WidenMultExpr	w*
gcc.WidenSumExpr	w+