Co-authored-by: NPolina Sokolova <polinasok@users.noreply.github.com>

Pulls in v0.3.0 of google/go-dap; this version has some fixes and API
improvements which service/dap will be able to leverage to clean up some
code.

* vendor: update starlark

* terminal: use new mechanism to cancel starlark threads

See: https://github.com/google/starlark-go/pull/298

It is only used in benchmarks and 'go test' now has command line
options to enable profiling as appropriate (but maybe it didn't in
2014).

Fixes #2037

Fixes #2026

Remove gitignore rule preventing vendor/modules.txt file from being
commited, add check that the vendor directory is synchronized.

Instead of rescanning debug_info every time we want to read a function
(either to find inlined calls or its variables) cache the tree of
dwarf.Entry that we would generate and use that.

Benchmark before:

BenchmarkConditionalBreakpoints-4   	       1	5164689165 ns/op

Benchmark after:

BenchmarkConditionalBreakpoints-4   	       1	4817425836 ns/op

Updates #1549

* Panic guard for DAP request handling

* Use GetSeq

* Re-vendor new version of go-dap

* Remove comment

* Update error message

* Reuse er.Message in Format

* Initial implementation for 'dlv dap'

* Fix Travis and AppVeyor failures

* Address review comments

* Address review comments

* Regenrate documentation

* Replace dap server printfs with log.Error

* Update 'dap log'

* Fix typos

* Revert logflags changes that got mixed in by accident

The ARM64 left the vendor directory in an inconsistent state, go1.13
doesn't care so we didn't catch it but go1.14 does.

* delve now can be built to arm64-arch and running on linux-arm64 OS.
* arm64 general-purpose registers have completed.
* arm64 disasm has completed.
Co-authored-by: Ntykcd996 <tang.yuke@zte.com.cn>
Co-authored-by: Nhengwu0 <wu.heng@zte.com.cn>

* *: Add .cirrus.yml for FreeBSD testing

* *: run go mod tidy

* service/test: prefer 127.0.0.1 over localhost

* dwarf/line: fix TestDebugLinePrologueParser

* vendor: rerun go mod vendor

* FreeBSD initial support

* first code review fixes

* regs slice upd

* execPtraceFunc wrap

* disabled concurrency tests
fixed kill() issue

* disabled concurrency tests
fixed kill() issue

* cleanup vendor related code

* cleanup ptrace calls

* vendoring latest changes

* Revert "vendoring latest changes"

This reverts commit 833cb87b

* vendoring latest changes

* requested changes

If the argument of 'source' ends in '.star' it will be interpreted as a
starlark script.
If the argument of 'source' is '-' an interactive starlark repl will be
started.

For documentation on how the starlark execution environment works see
Documentation/cli/starlark.md.

The starlark API is autogenerated from the JSON-RPC API by
script/gen-starlark-bindings.go.
In general for each JSON-RPC API a single global starlark function is
created.
When one of those functions is called (through a starlark script) the
arguments are converted to go structs using reflection. See
unmarshalStarlarkValue in pkg/terminal/starbind/conv.go.
If there are no type conversion errors the JSON-RPC call is executed.
The return value of the JSON-RPC call is converted back into a starlark
value by interfaceToStarlarkValue (same file):

* primitive types (such as integers, floats or strings) are converted
  by creating the corresponding starlark value.
* compound types (such as structs and slices) are converted by wrapping
  their reflect.Value object into a type that implements the relevant
  starlark interfaces.
* api.Variables are treated specially so that their Value field can be
  of the proper type instead of always being a string.

Implements #1415, #1443

We forgot to run typecheckrpc.go periodically and it didn't work
anymore and there were some minor errors in service/rpc2/client.go.

Rewrite typecheckrpc.go using go/packages, so that it works with go1.11
and go.mod, and fix the issues in client.go

updates vendored version of x86asm, adds a symbol lookup function to
pass to the disassembler.

This will show global symbol names in the disassembly like go tool
objdump does.

* command/terminal: allow restart to change process args

Add -args flag to "restart" command. For example, "restart -args a b c" will
pass args a b c to the new process.

Add "-c" flag to pass the checkpoint name. This is needed to disambiguate the
checkpoint name and arglist.

Reverted unnecessary changes.

* Applied reviewer comments.

Vendored argv.

Change the syntax of restart. When the target is is in recording mode, it always
interprets the args as a checkpoint. Otherwise, it interprets the args as
commandline args. The flag "-args" is still there, to handle the case in which
the user wants to pass an empty args on restart.

* Add restartargs.go.

Change "restart -args" to "restart -noargs" to clarify that this flag is used to
start a process with an empty arg.

Splits out type parsing and go-specific Type hierarchy from
x/debug/dwarf, replace x/debug/dwarf with debug/dwarf everywhere,
remove x/debug/dwarf from vendoring.

* pkg/proc: use golang.org/x/arch/x86/x86asm

instead of rsc.io/x86/x86asm

* pkg/dwarf: migrate to github.com/pkg/profile

from github.com/davecheney/profile

* scripts: keep script go files from being considered for the build

scripts/gen-*.go files are scripts for generating documentation
files and don't follow the typical Go package layout. Expected
usage is like

   go run scripts/gen-cli-docs.go

* vendor: update vendored packages

There were many changes in delve, and go tool chains since last
vendored package update. I just rerun godpes from scratch.

$ rm vendor/*
$ rm Godeps/Godeps.json
$ go list ./... | grep -v /vendor/ | grep -v /scripts/ | go get -u -t
$ go get -u github.com/mattn/go-colorable
$ go get -u github.com/mattn/go-isatty
$ go list ./... | grep -v /vendor/ | grep -v /scripts/ | godeps save

As suggested by Ederson de Souza.
https://groups.google.com/forum/?utm_medium=email#!msg/delve-dev/W_SfC3i9tf0/MY4QWaZOCgAJ

Patch https://go-review.googlesource.com/23085 has been merged so we
can go back to using golang.org/x/debug/.

* tests: update to cope with go1.7 SSA compiler

* de-vendored golang.org/x/debug/dwarf

We need our own tweaked version

* dwarf/debug/dwarf: always use the entry's name attribute

Using the name attribute leads to better type names as well as fixes
inconsistencies between 1.5, 1.6 and 1.7.

* proc: Updated loadInterface to work with go1.7

go1.7 changed the internal representation of types, removing the string
field from runtime._type.
Updated loadInterface to use the new str field.

Add fallback to display colors on Windows.

Implements #368

Fixes #392

Typedefs that resolve to slices are not recorded in DWARF as typedefs
but instead as structs in a way that there is no way to know they
are really slices using debug/dwarf.
Using golang.org/x/debug/dwarf instead this problem is solved and
as a bonus some types are printed with a nicer names: (struct string
→ string, struct []int → []int, etc)

 Fixes #356 and #293

Additionally removes test code / html / txt / etc from vendor dir.

Use godeps to vendor dependencies and the normal go toolchain, with
GO15VENDOREXPERIMENT=1 set to properly vendor dependencies for reproducible
builds.

I decided to vendor all debug/dwarf and debug/elf files so that the
project can be go get-table. All changes that I am waiting to land in Go
1.4 are now captured in /vendor/debug/*.