See https://github.com/golang/go/issues/42484

* Travis-CI: add ignorechecksum option to chocolatey command

Looks like a configuration problem on chocolatey's end.

* service/*: remove threadID argument of (*Debugger).PackageVariables

Which thread is used doesn't make any difference to the list of package
variables that is returned and this option was only ever used by an old
v1 API call.

Fixes #2134

See Issue #2134

This flag allows users on UNIX systems to set the tty for the program
being debugged by Delve. This is useful for debugging command line
applications which need access to their own TTY, and also for
controlling the output of the debugged programs so that IDEs may open a
dedicated terminal to show the output for the process.

This makes it so that CI will still work on forks, if necessary.

Autogenerates .travis.yml configuration using the contents of
pkg/goversion/compat.go.
Also:
- excludes testing of windows/amd64/tip and linux/arm64/tip (Travis-CI
  can't get Go at tip for those combinations).
- Removes Go 1.11 from pkg/goversion/compat.go which we don't test
  anymore.

* *: Remove appveyor, use travis windows support

* cmd/dlv: Update TestOutput for Travis on Windows

* cmd/dlv: Skip TestGeneratedDoc in Travis on Windows

* Reduce number of jobs in matrix

We only really want to test the full arch/go matrix on Linux.
For every other os/arch/go combination, only run Go tip and the latest
supported version.

This also removes Go 1.11 from the test matrix.

Now that 1.14 has been released, as always it should be included in the
test matrix.

This reverts commit 35d168ac.

See: https://github.com/go-delve/delve/pull/1786#issuecomment-562160264

* remove skip-code of some arm64 tests, which implemented.
* fix errors in testsuits for arm64

Skip the failed tests that don't work on arm64.

Bump continuous integration to include Go 1.13, drop 1.10 from
compatiblity file.

For some reason the version of dwz in Travis-CI now fails to run on Go
binaries. Ignore the particular error.

* tests: fix tests for Go 1.13

- Go 1.13 doesn't autogenerate init functions anymore, tests that
  expected that now fail and should be skipped.
- Plugin tests now need -gcflags'all=-N -l' now, we were probably
  getting lucky with -gcflags='-N -l' before.

* proc: allow signed integers as shift counts

Go1.13 allows signed integers to be used as the right hand side of a
shift operator, change eval to match.

* goversion: update maximum supported version

* travis: force Go to use vendor directory

Travis scripts get confused by "go: downloading" lines, the exact
reason is not clear. Testing that the vendor directory is up to date is
a good idea anyway.

Implements missing functionality in gdbserial to enable function calls
on OSX.

* core_test: fix TestCoreFpRegisters on go1.9

It was broken by 7bec20e5

* travis-ci: switch to VM builders for linux

Dropping test coverage for Go 1.6.

Closes #741

Currently Travis supports only Ubuntu 12.04 linux 2.6 VMs which are
terribly outdated, and trying to track down why it's hanging on Travis
but not on other similar VMs is more trouble than it's worth at the
moment.

Certainly another more appropriate and up to date CI solution should be
explored.