Russ Cox 3aed92f811 cmd/gc: add diagnostic for var, type, const named init ...

Before this CL, defining the variable worked fine, but then when
the implicit package-level init func was created, that caused a
name collision and a confusing error about the redeclaration.

Also add a test for issue 3705 (func init() needs body).

Fixes #4517.

R=ken2
CC=golang-dev
https://golang.org/cl/7008045

2012-12-22 17:23:33 -05:00

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