// in any of the imports. This guarantees there are no false positives
	// because the example needs to use the object so it must be defined
	// in the package or one if its imports. On the other hand, false
	// negatives are possible, but should be rare.
	for _, imp := range pkg.Imports() {
		if obj := imp.Scope().Lookup(name); obj != nil {
			ret = append(ret, obj)
		}
	}
	return ret
}

	{`(?i)\W`, `cc{0x0-0x2f 0x3a-0x40 0x5b-0x5e 0x60 0x7b-0x17e 0x180-0x2129 0x212b-0x10ffff}`},
	{`[^\\]`, `cc{0x0-0x5b 0x5d-0x10ffff}`},
	//	{ `\C`, `byte{}` },  // probably never

	// Unicode, negatives, and a double negative.
	{`\p{Braille}`, `cc{0x2800-0x28ff}`},
	{`\P{Braille}`, `cc{0x0-0x27ff 0x2900-0x10ffff}`},
	{`\p{^Braille}`, `cc{0x0-0x27ff 0x2900-0x10ffff}`},
	{`\P{^Braille}`, `cc{0x2800-0x28ff}`},

     * Returns `true` if adding [classToImport] import to the [file] might alter or break the
     * resolve of existing references in the file.
     *
     * N.B.: At the moment it might have both false positives and false negatives, since it does not
     * check all possible references.
     */
    private fun importBreaksExistingReferences(classToImport: ClassId, importAllInParent: Boolean): Boolean {

// we will be hiding races. But when using TSAN on mixed Go C/C++ code
// it is more important to avoid false positives, which reduce confidence
// in the tool, than to avoid false negatives.
const yesTsanProlog = `
#line 1 "cgo-tsan-prolog"
#define CGO_NO_SANITIZE_THREAD __attribute__ ((no_sanitize_thread))

long long _cgo_sync __attribute__ ((common));

extern void __tsan_acquire(void*);

	// Parallel, but in general we don't know whether the parent goroutine is the
	// top-level test function or some other goroutine it has spawned.
	// To avoid confusing false-negatives, we leave the parent in the running map
	// even though in the typical case it is blocked.

	if !<-t.signal {
		// At this point, it is likely that FailNow was called on one of the

dwq <******@****.***> 1702923949 +0800

Dan Peterson <******@****.***> 1468427735 -0600

  * Bug fixes

    * Fix some false negatives in detection of meaningful conflicts during strategic merge patch with maps and lists. ([#43469](https://github.com/kubernetes/kubernetes/pull/43469), [@enisoc](https://github.com/enisoc))

struid2:x:30:badgid:struid2name:/home/struid:/usr/sbin/nologin
`

var userIdTests = []struct {
	in   string
	uid  string
	name string
}{
	{testUserFile, "-5", "negative"},
	{testUserFile, "2", "bin"},
	{testUserFile, "100", ""}, // not in the file
	{testUserFile, "8", ""},   // plus sign, glibc doesn't find it
	{testUserFile, "9", ""},   // minus sign, glibc doesn't find it

func main() {
	_ = []int{-1: 0}    // ERROR "index must be non\-negative integer constant|index expression is negative|must not be negative"
	_ = [10]int{-1: 0}  // ERROR "index must be non\-negative integer constant|index expression is negative|must not be negative"
	_ = [...]int{-1: 0} // ERROR "index must be non\-negative integer constant|index expression is negative|must not be negative"

	_ = []int{100: 0}