misc/cgo: move easy tests to cmd/cgo/internal

This moves most misc/cgo tests to cmd/cgo/internal. This is mostly a
trivial rename and updating dist/test.go for the new paths, plus
excluding these packages from regular dist test registration. A few
tests were sensitive to what path they ran in, so we update those.

This will let these tests access facilities in internal/testenv.

For #37486.

Change-Id: I3ed417c7c22d9b667f2767c0cb1f59118fcd4af6
Reviewed-on: https://go-review.googlesource.com/c/go/+/492720
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>

15 files changed, 0 insertions, 405 deletions

diff --git a/misc/cgo/errors/testdata/err1.go b/misc/cgo/errors/testdata/err1.go
deleted file mode 100644
index ced7443599..0000000000
--- a/misc/cgo/errors/testdata/err1.go
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package main
-
-/*
-#cgo LDFLAGS: -L/nonexist
-
-void test() {
-	xxx;		// ERROR HERE
-}
-
-// Issue 8442.  Cgo output unhelpful error messages for
-// invalid C preambles.
-void issue8442foo(UNDEF*); // ERROR HERE
-*/
-import "C"
-
-func main() {
-	C.test()
-}
diff --git a/misc/cgo/errors/testdata/err2.go b/misc/cgo/errors/testdata/err2.go
deleted file mode 100644
index aa941584c3..0000000000
--- a/misc/cgo/errors/testdata/err2.go
+++ /dev/null
@@ -1,110 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package main
-
-/*
-#include <stdio.h>
-
-typedef struct foo foo_t;
-typedef struct bar bar_t;
-
-foo_t *foop;
-
-long double x = 0;
-
-static int transform(int x) { return x; }
-
-typedef void v;
-void F(v** p) {}
-
-void fvi(void *p, int x) {}
-
-void fppi(int** p) {}
-
-int i;
-void fi(int i) {}
-*/
-import "C"
-import (
-	"unsafe"
-)
-
-func main() {
-	s := ""
-	_ = s
-	C.malloc(s) // ERROR HERE
-
-	x := (*C.bar_t)(nil)
-	C.foop = x // ERROR HERE
-
-	// issue 13129: used to output error about C.unsignedshort with CC=clang
-	var x1 C.ushort
-	x1 = int(0) // ERROR HERE: C\.ushort
-
-	// issue 13423
-	_ = C.fopen() // ERROR HERE
-
-	// issue 13467
-	var x2 rune = '✈'
-	var _ rune = C.transform(x2) // ERROR HERE: C\.int
-
-	// issue 13635: used to output error about C.unsignedchar.
-	// This test tests all such types.
-	var (
-		_ C.uchar         = "uc"  // ERROR HERE: C\.uchar
-		_ C.schar         = "sc"  // ERROR HERE: C\.schar
-		_ C.ushort        = "us"  // ERROR HERE: C\.ushort
-		_ C.uint          = "ui"  // ERROR HERE: C\.uint
-		_ C.ulong         = "ul"  // ERROR HERE: C\.ulong
-		_ C.longlong      = "ll"  // ERROR HERE: C\.longlong
-		_ C.ulonglong     = "ull" // ERROR HERE: C\.ulonglong
-		_ C.complexfloat  = "cf"  // ERROR HERE: C\.complexfloat
-		_ C.complexdouble = "cd"  // ERROR HERE: C\.complexdouble
-	)
-
-	// issue 13830
-	// cgo converts C void* to Go unsafe.Pointer, so despite appearances C
-	// void** is Go *unsafe.Pointer. This test verifies that we detect the
-	// problem at build time.
-	{
-		type v [0]byte
-
-		f := func(p **v) {
-			C.F((**C.v)(unsafe.Pointer(p))) // ERROR HERE
-		}
-		var p *v
-		f(&p)
-	}
-
-	// issue 16116
-	_ = C.fvi(1) // ERROR HERE
-
-	// Issue 16591: Test that we detect an invalid call that was being
-	// hidden by a type conversion inserted by cgo checking.
-	{
-		type x *C.int
-		var p *x
-		C.fppi(p) // ERROR HERE
-	}
-
-	// issue 26745
-	_ = func(i int) int {
-		// typecheck reports at column 14 ('+'), but types2 reports at
-		// column 10 ('C').
-		// TODO(mdempsky): Investigate why, and see if types2 can be
-		// updated to match typecheck behavior.
-		return C.i + 1 // ERROR HERE: \b(10|14)\b
-	}
-	_ = func(i int) {
-		// typecheck reports at column 7 ('('), but types2 reports at
-		// column 8 ('i'). The types2 position is more correct, but
-		// updating typecheck here is fundamentally challenging because of
-		// IR limitations.
-		C.fi(i) // ERROR HERE: \b(7|8)\b
-	}
-
-	C.fi = C.fi // ERROR HERE
-
-}
diff --git a/misc/cgo/errors/testdata/err4.go b/misc/cgo/errors/testdata/err4.go
deleted file mode 100644
index 8e5f78e987..0000000000
--- a/misc/cgo/errors/testdata/err4.go
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package main
-
-/*
-long double x = 0;
-*/
-import "C"
-
-func main() {
-	_ = C.x // ERROR HERE
-	_ = C.x
-}
diff --git a/misc/cgo/errors/testdata/issue11097a.go b/misc/cgo/errors/testdata/issue11097a.go
deleted file mode 100644
index 028d10ce5c..0000000000
--- a/misc/cgo/errors/testdata/issue11097a.go
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package main
-
-/*
-//enum test { foo, bar };
-*/
-import "C"
-
-func main() {
-	var a = C.enum_test(1) // ERROR HERE
-	_ = a
-}
diff --git a/misc/cgo/errors/testdata/issue11097b.go b/misc/cgo/errors/testdata/issue11097b.go
deleted file mode 100644
index b00f24fc10..0000000000
--- a/misc/cgo/errors/testdata/issue11097b.go
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package main
-
-/*
-//enum test { foo, bar };
-*/
-import "C"
-
-func main() {
-	p := new(C.enum_test) // ERROR HERE
-	_ = p
-}
diff --git a/misc/cgo/errors/testdata/issue14669.go b/misc/cgo/errors/testdata/issue14669.go
deleted file mode 100644
index 04d2bcb631..0000000000
--- a/misc/cgo/errors/testdata/issue14669.go
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Issue 14669: test that fails when build with CGO_CFLAGS selecting
-// optimization.
-
-package p
-
-/*
-const int E = 1;
-
-typedef struct s {
-	int       c;
-} s;
-*/
-import "C"
-
-func F() {
-	_ = C.s{
-		c: C.E,
-	}
-}
diff --git a/misc/cgo/errors/testdata/issue18452.go b/misc/cgo/errors/testdata/issue18452.go
deleted file mode 100644
index 0386d76892..0000000000
--- a/misc/cgo/errors/testdata/issue18452.go
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Issue 18452: show pos info in undefined name errors
-
-package p
-
-import (
-	"C"
-	"fmt"
-)
-
-func a() {
-	fmt.Println("Hello, world!")
-	C.function_that_does_not_exist() // ERROR HERE
-	C.pi                             // ERROR HERE
-}
diff --git a/misc/cgo/errors/testdata/issue18889.go b/misc/cgo/errors/testdata/issue18889.go
deleted file mode 100644
index bba6b8f9bb..0000000000
--- a/misc/cgo/errors/testdata/issue18889.go
+++ /dev/null
@@ -1,7 +0,0 @@
-package main
-
-import "C"
-
-func main() {
-	_ = C.malloc // ERROR HERE
-}
diff --git a/misc/cgo/errors/testdata/issue28069.go b/misc/cgo/errors/testdata/issue28069.go
deleted file mode 100644
index e19a3b45bd..0000000000
--- a/misc/cgo/errors/testdata/issue28069.go
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Test that the error message for an unrepresentable typedef in a
-// union appears on the right line. This test is only run if the size
-// of long double is larger than 64.
-
-package main
-
-/*
-typedef long double             Float128;
-
-typedef struct SV {
-    union {
-        Float128         float128;
-    } value;
-} SV;
-*/
-import "C"
-
-type ts struct {
-	tv *C.SV // ERROR HERE
-}
-
-func main() {}
diff --git a/misc/cgo/errors/testdata/issue28721.go b/misc/cgo/errors/testdata/issue28721.go
deleted file mode 100644
index 0eb2a9271c..0000000000
--- a/misc/cgo/errors/testdata/issue28721.go
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// cgo should reject the use of mangled C names.
-
-package main
-
-/*
-typedef struct a {
-	int i;
-} a;
-void fn(void) {}
-*/
-import "C"
-
-type B _Ctype_struct_a // ERROR HERE
-
-var a _Ctype_struct_a // ERROR HERE
-
-type A struct {
-	a *_Ctype_struct_a // ERROR HERE
-}
-
-var notExist _Ctype_NotExist // ERROR HERE
-
-func main() {
-	_Cfunc_fn() // ERROR HERE
-}
diff --git a/misc/cgo/errors/testdata/issue33061.go b/misc/cgo/errors/testdata/issue33061.go
deleted file mode 100644
index 77d5f7a7c9..0000000000
--- a/misc/cgo/errors/testdata/issue33061.go
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// cgo shouldn't crash if there is an extra argument with a C reference.
-
-package main
-
-// void F(void* p) {};
-import "C"
-
-import "unsafe"
-
-func F() {
-	var i int
-	C.F(unsafe.Pointer(&i), C.int(0)) // ERROR HERE
-}
diff --git a/misc/cgo/errors/testdata/issue42580.go b/misc/cgo/errors/testdata/issue42580.go
deleted file mode 100644
index aba80dfeba..0000000000
--- a/misc/cgo/errors/testdata/issue42580.go
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright 2021 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Issue 42580: cmd/cgo: shifting identifier position in ast
-
-package cgotest
-
-// typedef int (*intFunc) ();
-//
-// char* strarg = "";
-//
-// int func_with_char(char* arg, void* dummy)
-// {return 5;}
-//
-// int* get_arr(char* arg, void* dummy)
-// {return NULL;}
-import "C"
-import "unsafe"
-
-// Test variables
-var (
-	checkedPointer            = []byte{1}
-	doublePointerChecked      = []byte{1}
-	singleInnerPointerChecked = []byte{1}
-)
-
-// This test checks the positions of variable identifiers.
-// Changing the positions of the test variables idents after this point will break the test.
-
-func TestSingleArgumentCast() C.int {
-	retcode := C.func_with_char((*C.char)(unsafe.Pointer(&checkedPointer[0])), unsafe.Pointer(C.strarg))
-	return retcode
-}
-
-func TestSingleArgumentCastRecFuncAsSimpleArg() C.int {
-	retcode := C.func_with_char((*C.char)(unsafe.Pointer(C.get_arr((*C.char)(unsafe.Pointer(&singleInnerPointerChecked[0])), unsafe.Pointer(C.strarg)))), nil)
-	return retcode
-}
-
-func TestSingleArgumentCastRecFunc() C.int {
-	retcode := C.func_with_char((*C.char)(unsafe.Pointer(C.get_arr((*C.char)(unsafe.Pointer(&doublePointerChecked[0])), unsafe.Pointer(C.strarg)))), unsafe.Pointer(C.strarg))
-	return retcode
-}
diff --git a/misc/cgo/errors/testdata/issue50710.go b/misc/cgo/errors/testdata/issue50710.go
deleted file mode 100644
index dffea22903..0000000000
--- a/misc/cgo/errors/testdata/issue50710.go
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright 2022 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package main
-
-// size_t StrLen(_GoString_ s) {
-// 	return _GoStringLen(s);
-// }
-import "C"
-
-func main() {
-	C.StrLen1() // ERROR HERE
-}
diff --git a/misc/cgo/errors/testdata/long_double_size.go b/misc/cgo/errors/testdata/long_double_size.go
deleted file mode 100644
index 8b797f886a..0000000000
--- a/misc/cgo/errors/testdata/long_double_size.go
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package main
-
-/*
-const int sizeofLongDouble = sizeof(long double);
-*/
-import "C"
-
-import "fmt"
-
-func main() {
-	fmt.Println(C.sizeofLongDouble)
-}
diff --git a/misc/cgo/errors/testdata/malloc.go b/misc/cgo/errors/testdata/malloc.go
deleted file mode 100644
index 65da0208b9..0000000000
--- a/misc/cgo/errors/testdata/malloc.go
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Test that C.malloc does not return nil.
-
-package main
-
-// #include <stdlib.h>
-import "C"
-
-import (
-	"fmt"
-	"runtime"
-)
-
-func main() {
-	var size C.size_t
-	size--
-
-	// The Dragonfly libc succeeds when asked to allocate
-	// 0xffffffffffffffff bytes, so pass a different value that
-	// causes it to fail.
-	if runtime.GOOS == "dragonfly" {
-		size = C.size_t(0x7fffffff << (32 * (^uintptr(0) >> 63)))
-	}
-
-	p := C.malloc(size)
-	if p == nil {
-		fmt.Println("malloc: C.malloc returned nil")
-		// Just exit normally--the test script expects this
-		// program to crash, so exiting normally indicates failure.
-	}
-}