refactor(TypeScript): Add noImplicitAny

We automatically insert explicit 'any's where needed. These need to be
addressed as in #9100.

Fixes #4924

modules/@angular/core/testing/regexp.ts

@@ -5,5 +5,5 @@ var _RE_SPECIAL_CHARS =
 var _ESCAPE_RE = RegExpWrapper.create(`[\\${_RE_SPECIAL_CHARS.join('\\')}]`);
 export function containsRegexp(input: string): RegExp {
   return RegExpWrapper.create(
-      StringWrapper.replaceAllMapped(input, _ESCAPE_RE, (match) => `\\${match[0]}`));
+      StringWrapper.replaceAllMapped(input, _ESCAPE_RE, (match: any /** TODO #9100 */) => `\\${match[0]}`));
 }