Fix the following issues:
- We were trying to complete struct literal field names for
selector expressions (e.g. "Foo{a.B<>}"). Now we only complete field
names in this case if the expression is an *ast.Ident.
- We weren't including lexical completions in cases where you might be
completing a field name or a variable name (e.g. "Foo{A<>}").
I refactored composite literal logic to live mostly in one place. Now
enclosingCompositeLiteral computes all the bits of information related
to composite literals. The expected type, completion, and snippet code
make use of those precalculated facts instead of redoing the work.
Change-Id: I29fc808544382c3c77f0bba1843520e04f38e79b
GitHub-Last-Rev: 3489062be342ab0f00325d3b3ae9ce681df7cf2e
GitHub-Pull-Request: golang/tools#96
Reviewed-on: https://go-review.googlesource.com/c/tools/+/176601
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
