fix(material/datepicker): Resolve issue with MatDatepickerIntl not be…

…ing picked up in lazy-loaded modules

Along the same lines as angular#12934, where the consumer-provided instance was not being picked up within lazy-loaded modules. The fix also resolves an issue with the close button text when switching to French language in components-examples.

fixes angular#25021

tools/public_api_guard/material/datepicker.md

@@ -48,6 +48,7 @@ import { Observable } from 'rxjs';
 import { OnChanges } from '@angular/core';
 import { OnDestroy } from '@angular/core';
 import { OnInit } from '@angular/core';
+import { Optional } from '@angular/core';
 import { Overlay } from '@angular/cdk/overlay';
 import { Portal } from '@angular/cdk/portal';
 import { ScrollStrategy } from '@angular/cdk/overlay';
@@ -107,6 +108,16 @@ export type ExtractDateTypeFromSelection<T> = T extends DateRange<infer D> ? D :
 // @public
 export const MAT_DATE_RANGE_SELECTION_STRATEGY: InjectionToken<MatDateRangeSelectionStrategy<any>>;
 
+// @public
+export const MAT_DATEPICKER_INTL_PROVIDER: {
+    provide: typeof MatDatepickerIntl;
+    deps: Optional[][];
+    useFactory: typeof MAT_DATEPICKER_INTL_PROVIDER_FACTORY;
+};
+
+// @public
+export function MAT_DATEPICKER_INTL_PROVIDER_FACTORY(parentIntl: MatDatepickerIntl): MatDatepickerIntl;
+
 // @public
 export const MAT_DATEPICKER_SCROLL_STRATEGY: InjectionToken<() => ScrollStrategy>;