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go/test/syntax
Robert Griesemer f8ae30c4a2 cmd/compile/internal/parser: improved a couple of error messages
The new syntax tree introduced with 1.8 represents send statements
(ch <- x) as statements; the old syntax tree represented them as
expressions (and parsed them as such) but complained if they were
used in expression context. As a consequence, some of the errors
that in the past were of the form "ch <- x used as value" now look
like "unexpected <- ..." because a "<-" is not valid according to
Go syntax in those situations. Accept the new error message.

Also: Fine-tune handling of misformed for loop headers.

Also: Minor cleanups/better comments.

Fixes #17590.

Change-Id: Ia541dea1f2f015c1b21f5b3ae44aacdec60a8aba
Reviewed-on: https://go-review.googlesource.com/37386
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2017-02-24 18:54:36 +00:00
..
chan1.go
chan.go
composite.go
ddd.go
else.go
if.go
import.go
initvar.go
interface.go
semi1.go
semi2.go
semi3.go
semi4.go
semi5.go
semi6.go
semi7.go
topexpr.go
typesw.go
vareq1.go
vareq.go