Intent of modelDecorations.test|title=deltaDecorations result respects input|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
    
    model/ 3 tests
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/model/modelDecorations.test|title=deltaDecorations deltaDecorations 1|occurrence=1 Inherited intervalTree.ts ×3
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/model/modelDecorations.test|title=deltaDecorations model doesn't get confused with individual tracked ranges|occurrence=1 Inherited modelDecorations.test|title=deltaDecorations model doesn't get confused with individual tracked ranges|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/model/modelDecorations.test|title=deltaDecorations result respects input|occurrence=1 Introduced here