fix fontface types (#376)

closes #372 

Also fixes typo for fontface `__unstable__uniqueWithLocations`

Author: bartveneman

src/atrules/atrules.test.js

@@ -299,7 +299,7 @@ AtRules('finds @font-face', () => {
     }`
   const actual = analyze(fixture, {
     useUnstableLocations: true
-  }).atrules.fontface.__unstable_uniqueWithLocations
+  }).atrules.fontface.__unstable__uniqueWithLocations
   const expected = {
     5: [{
       line: 2,

src/index.js

@@ -99,7 +99,7 @@ export function analyze(css, options = {}) {
   // Atrules
   let totalAtRules = 0
   let atRuleComplexities = new AggregateCollection()
-  /** @type {Record<string: string>}[]} */
+  /** @type {Record<string, string>[]} */
   let fontfaces = []
   let fontfaces_with_loc = new Collection(useLocations)
   let layers = new Collection(useLocations)
@@ -691,7 +691,7 @@ export function analyze(css, options = {}) {
         unique: fontfaces,
         uniquenessRatio: fontFacesCount === 0 ? 0 : 1,
       }, useLocations ? {
-        __unstable_uniqueWithLocations: fontfaces_with_loc.c().__unstable__uniqueWithLocations,
+        __unstable__uniqueWithLocations: fontfaces_with_loc.c().__unstable__uniqueWithLocations,
       } : {}),
       import: imports.c(),
       media: assign(