Intent of scanner.ts ×1

All 4 exact tests in this concept. Every test is marked by where it enters the hierarchy.

mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/ 4 tests
- platform/ 4 tests
  - contextkey/ 4 tests
    
    test/ 4 tests
    
    common/ 4 tests
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/contextkey/test/common/parser.test|title=Context Key Parser error handling foo && 'bar|occurrence=1 Inherited parser.test|title=Context Key Parser error handling foo && 'bar|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/contextkey/test/common/scanner.test|title=Context Key Scanner foo === bar'|occurrence=1 Inherited scanner.test|title=Context Key Scanner foo === bar'|occurrence=1, scanner.test|title=Context Key Scanner handling lexical errors foo === '|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/contextkey/test/common/scanner.test|title=Context Key Scanner handling lexical errors foo && 'bar - unterminated single quote|occurrence=1 Inherited scanner.test|title=Context Key Scanner handling lexical errors foo && 'bar - unterminated single quote|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/contextkey/test/common/scanner.test|title=Context Key Scanner handling lexical errors foo === '|occurrence=1 Inherited scanner.test|title=Context Key Scanner foo === bar'|occurrence=1, scanner.test|title=Context Key Scanner handling lexical errors foo === '|occurrence=1