Intent of lineHeights.test|title=Editor ViewLayout - LineHeightsManager can add single custom line height|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
- editor/ 3 tests
  - test/ 3 tests
    
    common/ 3 tests
    
    viewLayout/ 3 tests
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/viewLayout/lineHeights.test|title=Editor ViewLayout - LineHeightsManager can add multiple custom line heights|occurrence=1 Inherited lineHeights.test|title=Editor ViewLayout - LineHeightsManager can add multiple custom line heights|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/viewLayout/lineHeights.test|title=Editor ViewLayout - LineHeightsManager can add range of custom line heights|occurrence=1 Inherited lineHeights.test|title=Editor ViewLayout - LineHeightsManager can add range of custom line heights|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/viewLayout/lineHeights.test|title=Editor ViewLayout - LineHeightsManager can add single custom line height|occurrence=1 Introduced here