fix(material-experimental/mdc-form-field): implement new methods added to text field adapter (#20739)

* Project import generated by Copybara.

PiperOrigin-RevId: 335453885

* build: update mdc canary version

* fixup! build: update mdc canary version

Co-authored-by: Angular Material Team <[email protected]>

Author: wagnermaciel

package.json

@@ -61,7 +61,7 @@
     "@types/youtube": "^0.0.38",
     "@webcomponents/custom-elements": "^1.1.0",
     "core-js": "^2.6.9",
-    "material-components-web": "8.0.0-canary.774dcfc8e.0",
+    "material-components-web": "8.0.0-canary.8a39352c8.0",
     "rxjs": "^6.5.3",
     "rxjs-tslint-rules": "^4.33.1",
     "systemjs": "0.19.43",

src/material-experimental/mdc-form-field/form-field.ts

@@ -294,6 +294,11 @@ export class MatFormField implements AfterViewInit, OnDestroy, AfterContentCheck
     // abstract form control instance.
     deregisterValidationAttributeChangeHandler: () => {},
     registerValidationAttributeChangeHandler: () => null as any,
+
+    // Used by foundation to dynamically remove aria-describedby when the hint text
+    // is shown only on invalid state, which should not be applicable here.
+    setInputAttr: () => undefined,
+    removeInputAttr: () => undefined,
   };
 
   constructor(private _elementRef: ElementRef,