[MFA-G]

What changed

new Range(comparator, options) returns from the range instanceof Comparator branch before this.options, this.loose and this.includePrerelease are assigned, so those fields stayed undefined on a comparator-built range. Range#test() passes this.options to testSet(), which reads options.includePrerelease, so testing any prerelease version against such a range threw:

const semver = require('semver')

const r = new semver.Range(new semver.Comparator('>=1.0.0-alpha'))
r.test('1.0.0')        // true
r.test('1.0.0-beta')   // TypeError: Cannot read properties of undefined (reading 'includePrerelease')

// satisfies() takes the same path and threw too
semver.satisfies('1.0.0-beta', new semver.Comparator('>=1.0.0-alpha'))

Stable versions happened to work because testSet() short-circuits on version.prerelease.length.

Fixes #908.

Fix

Assign the three fields in the Comparator branch. A comparator already carries the options it was parsed with, so those are inherited when the caller passes no options; explicit options still win:

• new Range(comparator) uses the comparator's options (including includePrerelease).
• new Range(comparator, { includePrerelease: true }) and new Range(comparator, true) (loose) use what the caller asked for.

A comparator-built range now behaves exactly like the equivalent string range for .test(), .range, loose and includePrerelease.

Tests

Added to test/classes/range.js:

• a comparator-built range can test prerelease and stable versions;
• includePrerelease is inherited from the comparator, and an explicit option overrides it;
• boolean options (loose) are still parsed;
• options/loose/includePrerelease/range are populated.

Validation

• npx tap (full suite, coverage thresholds): pass, 53 test files, no failures
• npx eslint classes/range.js test/classes/range.js: clean