Intent of yaml.test|title=YAML Parser Edge cases multiple --- document separators: only first document is parsed|occurrence=1

All 3 exact tests in this concept. Every test is marked by where it enters the hierarchy.

mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/ 3 tests
- base/ 2 tests
  - test/ 2 tests
    
    common/ 2 tests
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/base/test/common/yaml.test|title=YAML Parser Edge cases multiple --- document separators: only first document is parsed|occurrence=1 Introduced here
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/base/test/common/yaml.test|title=YAML Parser parseMarkdown getStringValue returns the scalar for a known key|occurrence=1 Inherited yaml.test|title=YAML Parser parseMarkdown getStringValue returns the scalar for a known key|occurrence=1
- platform/ 1 test
  - agentHost/ 1 test
    
    test/ 1 test
    
    node/ 1 test
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/copilotAgent.test|title=CopilotAgent createSession activeClient eager-claim getSessionCustomizations publishes discovered files as Directory customizations|occurrence=1 Inherited copilotAgent.test|title=CopilotAgent createSession activeClient eager-claim getSessionCustomizations publishes discovered files as Directory customizations|occurrence=1