cmd/compile/internal/syntax: print position info for names in tree dump

Debugging support.

Change-Id: Ia518aaed36eaba76e6233306f718ad8aff3ce744
Reviewed-on: https://go-review.googlesource.com/37875
Reviewed-by: Matthew Dempsky <mdempsky@google.com>

diff --git a/src/cmd/compile/internal/syntax/dumper.go b/src/cmd/compile/internal/syntax/dumper.go
index bb369fc705bd587be586bb6fde4a6188279c5b48..01453d5a7ad0186c4795f5d9011d821fe3401a5e 100644 (file)
--- a/src/cmd/compile/internal/syntax/dumper.go
+++ b/src/cmd/compile/internal/syntax/dumper.go
@@ -119,7 +119,7 @@ func (p *dumper) dump(x reflect.Value, n Node) {
 
                // special cases for identifiers w/o attached comments (common case)
                if x, ok := x.Interface().(*Name); ok {
-                       p.printf(x.Value)
+                       p.printf("%s @ %v", x.Value, x.Pos())
                        return
                }