[gopls-release-branch.0.5] all: merge master into gopls-release-branch.0.5

8a9a8936 internal/lsp/cache: don't set tempModFile is view's modURI is empty
0f1c5395 internal/lsp: show orphaned file warnings as diagnostics
7b6ac5b9 internal/lsp/cache: slightly more useful comment
24570c05 internal/lsp: handle initial workspace load failure per module
04afef38 internal/lsp: don't search for workspace modules by default
7bb30d14 internal/lsp: fix go generate command for subdirs
06f3a46a gopls/internal/regtest: add benchmarks for completions
463111b6 internal/lsp: add a command to generate the gopls.mod file
03f0cc1c internal/lsp: interpolate variables in the sandbox
ba800b16 internal/lsp: ignore errors when finding workspace modules
f5e916c6 internal/lsp/source/completion: move search path to candidate
a1f7ab68 internal/lsp/source/completion: move deep search to end of completion
82fe25c3 gopls/doc: improve enum value documentation
aeb8e369 internal/lsp: remove multi-module support in tests
fa012525 all: replace 'the the ' with 'the '
a20a5e7f internal/lsp: rewrite createView to populate fields independently
4aa5c68d internal/lsp: remove multi-module test cases
0f52b63a internal/lsp/tests: use NeedsGo1Point
ccabf82f internal/lsp/cache: populate URI on files with errors
d647fc25 cmd/benchcmp: mention deprecation in docs
78fed78f internal/lsp: handle modifications to the workspace module
e94ab728 internal/lsp/source/completion: improve import suggestion labels
d56e4e40 internal/lsp/cache: set GO111MODULE=auto in 1.16
3791637d all: fix tests in preparation for GO111MODULE=on by default
d148ae1e internal/lsp/source/completion: convert deep completion to bfs
0511c4cc internal/imports: use ProcessEnv to filter files
75ebdcb7 gopls/internal/regtest: add expected ranges in completion tests
60aba8ac internal/lsp: always show errors from running commands
63098cc4 internal/imports: don't set Context.WorkingDir, which was renamed
655488c8 internal/lsp: fix concurrency issues in view initialization
c537a342 internal/lsp: pass options by reference instead of by value
c9a70fc2 internal/lsp/cache: fix release tag parsing
f128e626 internal/memoize: show key type in panics
587cf233 internal/lsp/mod: handle nil pointers in code lenses
56d9a0cd cover: fix sorting of profile segment boundaries
c8d9e05b gopls/internal/regtest: simplify expectation return values
6ec2cde9 internal/lsp/source: add some additional symbol downranking
e20053b7 gopls/internal/regtest: remove ExpectNow
797bd0f0 gopls/internal/regtest: simplify regtest EditorConfig
cbbbe623 gopls/internal/regtest: add an InitialWorkspaceLoad expectation
bf5c620a gopls/internal/regtest: move expectations to their own file
f4cefd1c internal/lsp: enable multi-module workspace mode by default in tests
2db8f0ff internal/lsp/cache: fix -mod=mod for workspace module setups
64986481 internal/lsp: check file kind before showing warning
3c2036f9 go/packages: support overlays for replaced modules
2b477fad tools, gopls: update Go versions in go.mod files to 1.12
8f9ed77d go/packages: add roots for overlaid packages for all query types
17fc728d internal/lsp: handle staticcheck in code actions
2350fe8b internal/lsp/source: fix panic in addFieldItems
97363e29 internal/lsp: handle staticcheck in didChangeConfiguration
6422fca0 report cycle when visiting a grey analyzer
b43031a3 internal/lsp/cache: fix for default -mod=readonly
7ad463ce gopls/internal/regtest: add a test for new symbols in test variants
d49a6cb6 internal/lsp/protocol: add support for upcoming LSP 3.16
d179df38 internal/lsp/cache: automatically construct the workspace module
571a2076 internal/lsp/source: fix duplicates in workspaceSymbols
53e29e9d internal/lsp: show a warning message when opening an "orphaned" file
d6107fe4 gopls/internal/regtest: skip failing test for go1.13 and below
b484961f x/gools/gopls: document settings for working on source distribution
44a29229 internal/lsp, go/packages: fix Go 1.15-related overlay bug
6a8222ee gopls/doc: generate settings JSON, docs
201d438b internal/lsp: add more tests for package completion

Change-Id: I9e52247c70e94cbedf2ebc47a6e9b2f6dabdb8c6