tree 3e4c2e6b50779b7b8954c8738b1b9e12781b4c85
parent 93b8d146431e7e0e88e5a0658a2d6a438ccf1c6b
author Alan Donovan <adonovan@google.com> 1546812419 -0500
committer Alan Donovan <adonovan@google.com> 1546813873 -0500

resolve: allow if/for/while statements at toplevel

These constructs are still disallowed in the Bazel build language,
but it is easy to check for them as a separate pass over the syntax tree,
so there is no need to complicate the spec with this restriction,
which is a nuisance in other dialects.

Clients that set the -globalreassign flag to suppress the check
need do so no longer.

Change-Id: I39ddb2128e6151a878a884fdb84d7017df2d5d51