refactor(compiler-cli): Move diagnostics files to language service (#33809)

The following files are consumed only by the language service and do not
have to be in compiler-cli:

1. expression_diagnostics.ts
2. expression_type.ts
3. typescript_symbols.ts
4. symbols.ts

PR Close #33809

packages/language-service/src/completions.ts

@@ -7,10 +7,10 @@
  */
 
 import {AST, AstPath, Attribute, BoundDirectivePropertyAst, BoundElementPropertyAst, BoundEventAst, BoundTextAst, CssSelector, Element, ElementAst, ImplicitReceiver, NAMED_ENTITIES, Node as HtmlAst, NullTemplateVisitor, ParseSpan, PropertyRead, TagContentType, Text, findNode, getHtmlTagDefinition} from '@angular/compiler';
-import {getExpressionScope} from '@angular/compiler-cli/src/language_services';
 import {$$, $_, isAsciiLetter, isDigit} from '@angular/compiler/src/chars';
 
 import {AstResult} from './common';
+import {getExpressionScope} from './expression_diagnostics';
 import {getExpressionCompletions} from './expressions';
 import {attributeNames, elementNames, eventNames, propertyNames} from './html_info';
 import {InlineTemplate} from './template';