cgo+windows broken in 4.0.0 (error: error reading '.'; iquote)

### What version of rules_go are you using?
v0.25.1 (also tried master)

### What version of gazelle are you using?
v0.22.3

### What version of Bazel are you using?
4.0.0

### Does this issue reproduce with the latest releases of all the above?
I suspect, yes.

### What operating system and processor architecture are you using?
This is a x86_64 windows 10 machine.

### Any other potentially useful information about your toolchain?
I haven't explicitly configured a toolchain. I launch bazel in a docker image and use local_cc.
This works fine in linux with clang or gcc but windows is a different beast.

An aside, are there any examples to run RBE locally? RBE seems very promising but it's undocumented

### What did you do?
I am trying to build in windows.

TBH, I'm not familiar enough w/ windows to say for sure whether it's a bug or PEBKAC.

I created a repro here .

I was able to find a few related issues:
* bazelbuild/rules_go#2687 it's not the same issue but it looks similar to the last one -- it could also be an issue w/ my sandbox.
* protocolbuffers/protobuf#8049

The first issue pevents me from compiling using mingw.
The second issue seems similar to the one I'm experiencing using msvc/clang/clang-cl, albeit at a different callsite.

### What did you expect to see?
cgo should work on windows

### What did you see instead?
cgo doesn't work

### Random thoughts
I've been ruminating on a few approaches and I'm wondering what you think.

1. Fix protobuf so that it builds with gcc (8049)
a. can we just add mutable modifier to the mutex?
b. is there a const modifier we can remove?
c. I clearly didn't check :) hopefully it's a simple fix though.

2. define"target overrides" / support multiple compilers. What I'm thinking is a json/proto, e.g.:
```
{
'overrides': {
'//pkg:target' : {
'cc_compiler': '...' // or cc toolchain
}
}
}
```
For `#2` , I'm very curious to hear your thoughts. I realize this is not really in the spirit of blaze. *but* I'm not really sure how I'm supposed to override the compiler used for "that" go package when "that" is generated code, i.e. from vendor (/vendor/...).

Personally, I don't like approach 2. Mixing objects from multiple compilers wouldprobably work but it introduces complexity...(and it just feels like a hack)

cc @jayconrod
```
$ /c/bin/bazelisk.exe --bazelrc ./tools/bazelrc.windows run //repro --sandbox_debug --verbose_failures --compiler=clang-cl
Loading:
Loading: 0 packages loaded
INFO: Build options --compiler and --host_compiler have changed, discarding analysis cache.
Analyzing: target //repro:repro (0 packages loaded, 0 targets configured)
INFO: Analyzed target //repro:repro (0 packages loaded, 7029 targets configured).
INFO: Found 1 target...
[0 / 6] [Prepa] BazelWorkspaceStatusAction stable-status.txt
ERROR: C:/users/johnskopis/src/repro/vendor/github.com/mattn/go-sqlite3/BUILD.bazel:3:11: GoCompilePkg vendor/github.com/mattn/go-sqlite3/go-sqlite3.a failed: (Exit 1): builder.exe failed: error executing command
cd C:/tmp/q56i5uwg/execroot/repro
SET CC=C:/LLVM/bin/clang-cl.exe
SET CGO_ENABLED=1
SET GOARCH=amd64
SET GOOS=windows
SET GOPATH=
SET GOROOT=external/go_sdk
SET GOROOT_FINAL=GOROOT
SET INCLUDE=C:\vs2019tools\VC\Tools\MSVC\14.28.29333\ATLMFC\include;C:\vs2019tools\VC\Tools\MSVC\14.28.29333\include;C:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\include\um;C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt;C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\shared;C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um;C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\winrt;C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\cppwinrt;C:\LLVM\lib\clang\11.0.1\include
SET LIB=C:\vs2019tools\VC\Tools\MSVC\14.28.29333\ATLMFC\lib\x64;C:\vs2019tools\VC\Tools\MSVC\14.28.29333\lib\x64;C:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\lib\um\x64;C:\Program Files (x86)\Windows Kits\10\lib\10.0.18362.0\ucrt\x64;C:\Program Files (x86)\Windows Kits\10\lib\10.0.18362.0\um\x64;C:\LLVM\lib\clang\11.0.1\lib\windows;C:\LLVM\lib\clang\11.0.1\lib\windows
SET PATH=;C:/LLVM/bin;C:\Program Files (x86)\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.8 Tools\x64\;C:\Program Files (x86)\Windows Kits\10\bin\10.0.18362.0\x64;C:\Program Files (x86)\Windows Kits\10\bin\x64;C:\WINDOWS\system32;C:\Windows\Microsoft.NET\Framework64\v4.0.30319;C:\vs2019tools\Common7\IDE\;C:\vs2019tools\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin;C:\vs2019tools\Common7\IDE\CommonExtensions\Microsoft\CMake\Ninja;C:\vs2019tools\Common7\IDE\CommonExtensions\Microsoft\TeamFoundation\Team Explorer;C:\vs2019tools\Common7\IDE\CommonExtensions\Microsoft\TestWindow;C:\vs2019tools\Common7\IDE\VC\VCPackages;C:\vs2019tools\Common7\Tools\;C:\vs2019tools\MSBuild\Current\bin\Roslyn;C:\vs2019tools\VC\Tools\Llvm\x64\bin;C:\vs2019tools\VC\Tools\MSVC\14.28.29333\bin\HostX64\x64;C:\vs2019tools\\MSBuild\Current\Bin
SET TEMP=C:\Users\johnskopis\AppData\Local\Temp
SET TMP=C:\Users\johnskopis\AppData\Local\Temp
bazel-out/host/bin/external/go_sdk/builder.exe compilepkg -sdk external/go_sdk -installsuffix windows_amd64 -src vendor/github.com/mattn/go-sqlite3/backup.go -src vendor/github.com/mattn/go-sqlite3/callback.go -src vendor/github.com/mattn/go-sqlite3/convert.go -src vendor/github.com/mattn/go-sqlite3/doc.go -src vendor/github.com/mattn/go-sqlite3/error.go -src vendor/github.com/mattn/go-sqlite3/sqlite3.go -src vendor/github.com/mattn/go-sqlite3/sqlite3_context.go -src vendor/github.com/mattn/go-sqlite3/sqlite3_func_crypt.go -src vendor/github.com/mattn/go-sqlite3/sqlite3_go18.go -src vendor/github.com/mattn/go-sqlite3/sqlite3_load_extension.go -src vendor/github.com/mattn/go-sqlite3/sqlite3_opt_preupdate.go -src vendor/github.com/mattn/go-sqlite3/sqlite3_opt_preupdate_omit.go -src vendor/github.com/mattn/go-sqlite3/sqlite3_opt_userauth_omit.go -src vendor/github.com/mattn/go-sqlite3/sqlite3_other.go -src vendor/github.com/mattn/go-sqlite3/sqlite3_solaris.go -src vendor/github.com/mattn/go-sqlite3/sqlite3_type.go -src vendor/github.com/mattn/go-sqlite3/sqlite3_usleep_windows.go -src vendor/github.com/mattn/go-sqlite3/sqlite3_windows.go -src vendor/github.com/mattn/go-sqlite3/static_mock.go -src vendor/github.com/mattn/go-sqlite3/sqlite3-binding.c -src vendor/github.com/mattn/go-sqlite3/sqlite3_opt_unlock_notify.c -src vendor/github.com/mattn/go-sqlite3/sqlite3-binding.h -src vendor/github.com/mattn/go-sqlite3/sqlite3ext.h -importpath github.com/mattn/go-sqlite3 -p github.com/johnskopis/repro/vendor/github.com/mattn/go-sqlite3 -package_list bazel-out/host/bin/external/go_sdk/packages.txt -o bazel-out/x64_windows-opt/bin/vendor/github.com/mattn/go-sqlite3/go-sqlite3.a -x bazel-out/x64_windows-opt/bin/vendor/github.com/mattn/go-sqlite3/go-sqlite3.x -gcflags -asmflags -cppflags -I vendor/github.com/mattn/go-sqlite3 -iquote . -cflags /nologo /DCOMPILER_MSVC /DNOMINMAX /D_WIN32_WINNT=0x0601 /D_CRT_SECURE_NO_DEPRECATE /D_CRT_SECURE_NO_WARNINGS /bigobj /Zm500 /EHsc /wd4351 /wd4291 /wd4250 /wd4996 /showIncludes /MD /O2 /Oy- /DNDEBUG /wd4117 -D__DATE__="redacted" -D__TIMESTAMP__="redacted" -D__TIME__="redacted" -Wno-builtin-macro-redefined /Gy /Gw -DHAVE_USLEEP=1 -DSQLITE_DEFAULT_WAL_SYNCHRONOUS=1 -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_PARENTHESIS -DSQLITE_ENABLE_RTREE -DSQLITE_ENABLE_UPDATE_DELETE_LIMIT -DSQLITE_OMIT_DEPRECATED -DSQLITE_THREADSAFE=1 -DSQLITE_TRACE_SIZE_LIMIT=15 -Wno-deprecated-declarations -std=gnu99 -Ivendor/github.com/mattn/go-sqlite3 -fno-stack-check -fno-stack-protector -mno-stack-arg-probe -fPIC -cxxflags /nologo /DCOMPILER_MSVC /DNOMINMAX /D_WIN32_WINNT=0x0601 /D_CRT_SECURE_NO_DEPRECATE /D_CRT_SECURE_NO_WARNINGS /bigobj /Zm500 /EHsc /wd4351 /wd4291 /wd4250 /wd4996 /showIncludes /MD /O2 /Oy- /DNDEBUG /wd4117 -D__DATE__="redacted" -D__TIMESTAMP__="redacted" -D__TIME__="redacted" -Wno-builtin-macro-redefined /Gy /Gw -fPIC -objcflags /nologo /DCOMPILER_MSVC /DNOMINMAX /D_WIN32_WINNT=0x0601 /D_CRT_SECURE_NO_DEPRECATE /D_CRT_SECURE_NO_WARNINGS /bigobj /Zm500 /EHsc /wd4351 /wd4291 /wd4250 /wd4996 /showIncludes /MD /O2 /Oy- /DNDEBUG /wd4117 -D__DATE__="redacted" -D__TIMESTAMP__="redacted" -D__TIME__="redacted" -Wno-builtin-macro-redefined /Gy /Gw -DHAVE_USLEEP=1 -DSQLITE_DEFAULT_WAL_SYNCHRONOUS=1 -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_PARENTHESIS -DSQLITE_ENABLE_RTREE -DSQLITE_ENABLE_UPDATE_DELETE_LIMIT -DSQLITE_OMIT_DEPRECATED -DSQLITE_THREADSAFE=1 -DSQLITE_TRACE_SIZE_LIMIT=15 -Wno-deprecated-declarations -std=gnu99 -Ivendor/github.com/mattn/go-sqlite3 -fno-stack-check -fno-stack-protector -mno-stack-arg-probe -fPIC -objcxxflags /nologo /DCOMPILER_MSVC /DNOMINMAX /D_WIN32_WINNT=0x0601 /D_CRT_SECURE_NO_DEPRECATE /D_CRT_SECURE_NO_WARNINGS /bigobj /Zm500 /EHsc /wd4351 /wd4291 /wd4250 /wd4996 /showIncludes /MD /O2 /Oy- /DNDEBUG /wd4117 -D__DATE__="redacted" -D__TIMESTAMP__="redacted" -D__TIME__="redacted" -Wno-builtin-macro-redefined /Gy /Gw -fPIC -ldflags /nologo /SUBSYSTEM:CONSOLE /MACHINE:X64 /DEFAULTLIB:clang_rt.builtins-x86_64.lib /DEFAULTLIB:msvcrt.lib /OPT:ICF /OPT:REF -lmingwex -lmingw32
Execution platform: @local_config_platform//:host
clang-cl: warning: unknown argument ignored in clang-cl: '-dM' [-Wunknown-argument]
clang-cl: warning: unknown argument ignored in clang-cl: '-iquote' [-Wunknown-argument]
clang-cl: warning: unknown argument ignored in clang-cl: '-iquote' [-Wunknown-argument]
clang-cl: warning: unknown argument ignored in clang-cl: '-iquote' [-Wunknown-argument]
clang-cl: warning: unknown argument ignored in clang-cl: '-std=gnu99' [-Wunknown-argument]
clang-cl: warning: unknown argument ignored in clang-cl: '-fno-stack-check' [-Wunknown-argument]
clang-cl: warning: unknown argument ignored in clang-cl: '-fno-stack-protector' [-Wunknown-argument]
clang-cl: warning: unknown argument ignored in clang-cl: '-mno-stack-arg-probe' [-Wunknown-argument]
clang-cl: warning: unknown argument ignored in clang-cl: '-fPIC' [-Wunknown-argument]
error: error reading '.'
1 error generated.
compilepkg: error running subcommand external\go_sdk\pkg\tool\windows_amd64\cgo.exe: exit status 2
Target //repro:repro failed to build
INFO: Elapsed time: 0.654s, Critical Path: 0.11s
INFO: 2 processes: 2 internal.
FAILED: Build did NOT complete successfully
ERROR: Build failed. Not running target
FAILED: Build did NOT complete successfully
```

Start with the linked repro and the verbose Bazel command, then inspect the GoCompilePkg invocation involving external/go_sdk/builder.exe and cgo.exe. Compare the Windows compiler flags and the reported “error reading '.'” with the related rules_go and protobuf issues. Done means the go-sqlite3 cgo target builds successfully on Windows.

Written by the indexing model from the issue text.