rename MatAutocompleteOptionHarness click method to select

Author: mmalerba

src/material/autocomplete/testing/autocomplete-harness.ts

@@ -87,7 +87,7 @@ export class MatAutocompleteHarness extends ComponentHarness {
     if (!options.length) {
       throw Error(`Could not find a mat-option matching ${JSON.stringify(filters)}`);
     }
-    await options[0].click();
+    await options[0].select();
   }
 
   /** Gets whether the autocomplete is open. */

src/material/autocomplete/testing/option-harness.ts

@@ -33,7 +33,7 @@ export class MatAutocompleteOptionHarness extends ComponentHarness {
   }
 
   /** Clicks the option. */
-  async click(): Promise<void> {
+  async select(): Promise<void> {
     return (await this.host()).click();
   }