Migrate location-related structs to the file package (#1751)

* migrate location structs to file package

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* replace source.Location refs with file package call

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* fix linting

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* remove hardlink test for file based catalogers

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* remove hardlink test for all-regular-files testing

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* migrate file resolver implementations to separate package

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* fix linting

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* [wip] migrate resolvers to internal

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* migrate resolvers to syft/internal

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

---------

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>
Signed-off-by: <>

syft/pkg/cataloger/java/parse_gradle_lockfile.go

@@ -5,9 +5,9 @@ import (
 	"strings"
 
 	"github.com/anchore/syft/syft/artifact"
+	"github.com/anchore/syft/syft/file"
 	"github.com/anchore/syft/syft/pkg"
 	"github.com/anchore/syft/syft/pkg/cataloger/generic"
-	"github.com/anchore/syft/syft/source"
 )
 
 const gradleLockfileGlob = "**/gradle.lockfile*"
@@ -19,7 +19,7 @@ type LockfileDependency struct {
 	Version string
 }
 
-func parseGradleLockfile(_ source.FileResolver, _ *generic.Environment, reader source.LocationReadCloser) ([]pkg.Package, []artifact.Relationship, error) {
+func parseGradleLockfile(_ file.Resolver, _ *generic.Environment, reader file.LocationReadCloser) ([]pkg.Package, []artifact.Relationship, error) {
 	var pkgs []pkg.Package
 
 	// Create a new scanner to read the file
@@ -51,7 +51,7 @@ func parseGradleLockfile(_ source.FileResolver, _ *generic.Environment, reader s
 		mappedPkg := pkg.Package{
 			Name:    dep.Name,
 			Version: dep.Version,
-			Locations: source.NewLocationSet(
+			Locations: file.NewLocationSet(
 				reader.Location.WithAnnotation(pkg.EvidenceAnnotationKey, pkg.PrimaryEvidenceAnnotation),
 			),
 			Language:     pkg.Java,