refactor(@angular-devkit/core): remove deprecated exceptions

With commits removes the several deprecated exceptions.

BREAKING CHANGE:

- `ContentHasMutatedException`, `InvalidUpdateRecordException`, `UnimplementedException` and `MergeConflictException` API from `@angular-devkit/core` have been removed in favor of the API from `@angular-devkit/schematics`.
- `UnsupportedPlatformException` - A custom error exception should be created instead.

goldens/public-api/angular_devkit/core/index.md

@@ -59,11 +59,6 @@ export class CircularDependencyFoundException extends BaseException {
 // @public
 function classify(str: string): string;
 
-// @public @deprecated (undocumented)
-export class ContentHasMutatedException extends BaseException {
-    constructor(path: string);
-}
-
 // @public
 class CordHost extends SimpleMemoryHost {
     constructor(_back: ReadonlyHost);
@@ -326,11 +321,6 @@ export class InvalidPathException extends BaseException {
     constructor(path: string);
 }
 
-// @public @deprecated (undocumented)
-export class InvalidUpdateRecordException extends BaseException {
-    constructor();
-}
-
 // @public
 export function isAbsolute(p: Path): boolean;
 
@@ -535,11 +525,6 @@ export { logging }
 // @public (undocumented)
 type LogLevel = 'debug' | 'info' | 'warn' | 'error' | 'fatal';
 
-// @public @deprecated (undocumented)
-export class MergeConflictException extends BaseException {
-    constructor(path: string);
-}
-
 // @public
 function mergeSchemas(...schemas: (JsonSchema | undefined)[]): JsonSchema;
 
@@ -1320,21 +1305,11 @@ function trimNewlines(strings: TemplateStringsArray, ...values: any[]): string;
 // @public
 function underscore(str: string): string;
 
-// @public @deprecated (undocumented)
-export class UnimplementedException extends BaseException {
-    constructor();
-}
-
 // @public (undocumented)
 export class UnknownException extends BaseException {
     constructor(message: string);
 }
 
-// @public @deprecated (undocumented)
-export class UnsupportedPlatformException extends BaseException {
-    constructor();
-}
-
 // @public (undocumented)
 type UriHandler = (uri: string) => Observable<JsonObject> | Promise<JsonObject> | null | undefined;
 

packages/angular_devkit/core/src/exception.ts

@@ -39,49 +39,3 @@ export class PathIsFileException extends BaseException {
     super(`Path "${path}" is a file.`);
   }
 }
-
-/**
- * @deprecated since version 14. Use the same symbol from `@angular-devkit/schematics`.
- */
-export class ContentHasMutatedException extends BaseException {
-  constructor(path: string) {
-    super(`Content at path "${path}" has changed between the start and the end of an update.`);
-  }
-}
-
-/**
- * @deprecated since version 14. Use the same symbol from `@angular-devkit/schematics`.
- */
-
-export class InvalidUpdateRecordException extends BaseException {
-  constructor() {
-    super(`Invalid record instance.`);
-  }
-}
-
-/**
- * @deprecated since version 14. Use the same symbol from `@angular-devkit/schematics`.
- */
-export class MergeConflictException extends BaseException {
-  constructor(path: string) {
-    super(`A merge conflicted on path "${path}".`);
-  }
-}
-
-/**
- * @deprecated since version 14. Create a custom exception implementation instead.
- */
-export class UnimplementedException extends BaseException {
-  constructor() {
-    super('This function is unimplemented.');
-  }
-}
-
-/**
- * @deprecated since version 14. Create a custom exception implementation instead.
- */
-export class UnsupportedPlatformException extends BaseException {
-  constructor() {
-    super('This platform is not supported by this code path.');
-  }
-}