Severity and De5cr1p7-haX0Rion	Path	Resource	Location	Creation Time	Id
ambiguous implicit value:
 both value txt of type test.Context
 and method txt0 in object bar of type => test.Context
 match expected type test.Context	test/src/test	Test.scala	line 17	1149259351511	41763


Messages doesn't work well in the IDE (too verbose, doesn't take advantage of IDE markers)

(1) Summary description of each error that doesn't mention context information

(2) list of context information containing each separate tree involved in the error, trees should be identified directly (rather than translated into strings) so that we can create IDE markers at their locations. As an example, the above error would be associated with three markers (one for each ambiguous implicit parameter, and one at the point where the ambiguity is detected).

Incidently, even on the command line, we should be providing more location information for trees mentioned in an error message.

(3) Need to know the extent of the error (the true begin and end position of the tree).