* mcs/flowanalysis.cs (FlowBranchingToplevel.AddReturnOrigin): Move

* mcs/flowanalysis.cs (FlowBranchingToplevel.AddReturnOrigin): Move
checking of out parameters to ...
(FlowBranchingToplevel.Merge): ... here.
(FlowBranchingException.AddBreakOrigin): If 'finally_vector' is
set, propagate the origin upward, and only complain if there was
no other error.
(FlowBranchingException.AddContinueOrigin): Likewise.
(FlowBranchingException.AddReturnOrigin): Likewise.
(FlowBranchingException.AddGotoOrigin): Likewise.
* gmcs/flowanalysis.cs: Likewise.

svn path=/trunk/mcs/; revision=61044