Move isPending to houdini core (#1089)

packages/houdini-react/src/runtime/routing/index.ts

@@ -1,4 +1,3 @@
 export * from './components'
 export { suspense_cache } from './lib/cache'
 export type { RouterManifest, RouterPageManifest } from './lib/types'
-export { isPending } from './lib/is_pending'

packages/houdini/src/runtime/lib/types.ts

@@ -379,6 +379,11 @@ interface VariableNode {
 	readonly kind: 'Variable'
 	readonly name: NameNode
 }
+
 export const PendingValue = Symbol('houdini_loading')
 
 export type LoadingType = typeof PendingValue
+
+export function isPending(value: any): value is LoadingType {
+	return typeof value === 'symbol'
+}