fmt.Printf(" %s", b)
			}
		}
		fmt.Print("\n")
	}
	return ln
}

// assembleChildren initializes the children field of each
// loop in the nest.  Loop A is a child of loop B if A is
// directly nested within B (based on the reducible-loops
// detection above)
func (ln *loopnest) assembleChildren() {
	if ln.initializedChildren {
		return
	}
	for _, l := range ln.loops {

go list -f $MODFMT example.net/ambiguous/nested/pkg
stdout '^example.net/ambiguous/nested v0\.1\.0$'
! stderr .

go mod edit -go=1.16
go list -m all
cmp stdout all-m.txt

! go list -f $MODFMT example.net/ambiguous/nested/pkg
stderr '^ambiguous import: found package example\.net/ambiguous/nested/pkg in multiple modules:\n\texample\.net/ambiguous v0\.1\.0 \(.*\)\n\texample\.net/ambiguous/nested v0\.1\.0 \(.*\)\n'

cp go.mod.orig go.mod
go mod edit -require example.com/nest@v1.0.0
go get example.com/nest/sub/y...
grep 'example.com/nest/sub v1.0.0' go.mod
grep 'example.com/nest v1.0.0' go.mod

# However, if the pattern matches the module path itself, the module
# should be upgraded even if it contains no matching packages.
go get example.com/n...t
grep 'example.com/nest v1.1.0' go.mod
grep 'example.com/nest/sub v1.0.0' go.mod

-- go.mod.orig --
module m

			}
		}

		// No cycle was found. Check the RHS of t.
		// Every type added to nest is also added to path; thus every type that is in nest
		// must also be in path (invariant). But not every type in path is in nest, since
		// nest may be pruned (see below, *TypeParam case).
		if !check.validType0(pos, t.Origin().fromRHS, append(nest, t), append(path, t)) {
			return false
		}

		// see TODO above

	// call (this assumes the parameter is of interface type).
	ParamFeedsInterfaceMethodCall ParamPropBits = 1 << iota

	// Parameter value feeds unmodified into an interface call that
	// may be conditional/nested and not always executed (this assumes
	// the parameter is of interface type).
	ParamMayFeedInterfaceMethodCall ParamPropBits = 1 << iota

	// Parameter value feeds unmodified into a top level indirect

go get -u ./...
grep 'rsc.io/quote.*v1.5.2' go.mod
grep 'golang.org/x/text.*v0.3.0' go.mod
cp go.mod go.mod.implicitmod

# 'go get -u local/...' should be equivalent to 'go get -u ./...'
# (assuming no nested modules)
cp go.mod.orig go.mod
go get -u local/...
cmp go.mod go.mod.implicitmod

# For the main module, @patch should be a no-op.
cp go.mod.orig go.mod
go get -u local/...@patch
cmp go.mod go.mod.implicitmod

stdout '"Subdir": "nested"'
stdout '"TagPrefix": "nested/"'
stdout '"TagSum": "t1:47DEQpj8HBSa\+/TImW\+5JCeuQeRkm5NMpJWZG3hSuFU="'
stdout '"Ref": "refs/tags/has-nested"'
stdout '"Hash": "08a4fa6bb9c04ffba03b26ae427b0d6335d90a2a"'

go list -reuse=has-nested.json -json -m --versions -e vcs-test.golang.org/git/issue61415.git/nested@has-nested
stdout '"Origin":'
stdout '"VCS": "git"'
stdout '"URL":'  # randomly-chosen vcweb localhost URL

stderr 'ambiguous import: found package example.com/retract/ambiguous/nested in multiple modules:'
stderr '^go: warning: example.com/retract/ambiguous/nested@v1.9.0-bad: retracted by module author: nested modules are bad$'

-- go.mod --
module example.com/use

go 1.16

package x
-- x/v3.go --
package v3
import _ "x.localhost/v3"

-- v3/go.mod --
module x.localhost/v3
-- v3/x.go --
package x

-- w/go.mod --
module w.localhost
-- w/skip/skip.go --
// Package skip is nested below nonexistent package w.
package skip

-- y/go.mod --
module y.localhost
-- y/z/w/w.go --
package w

-- v12/go.mod --
module v.localhost
-- v12/v.go --
package v

		if cc.Cases == nil {
			hasDefault = true
		}
		if !check.isTerminatingList(cc.Body, "") || hasBreakList(cc.Body, label, true) {
			return false
		}
	}
	return hasDefault
}

// TODO(gri) For nested breakable statements, the current implementation of hasBreak
// will traverse the same subtree repeatedly, once for each label. Replace
// with a single-pass label/break matching phase.