Intent of pieceTreeBase.ts ×1

All 9 exact tests in this concept. Every test is marked by where it enters the hierarchy.

mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/ 9 tests
- editor/ 9 tests
  - test/ 9 tests
    
    common/ 9 tests
    
    model/ 9 tests
    
    pieceTreeTextBuffer/ 7 tests
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/model/pieceTreeTextBuffer/pieceTreeTextBuffer.test|title=centralized lineStarts with CRLF random bug 1|occurrence=1 Inherited pieceTreeTextBuffer.test|title=centralized lineStarts with CRLF random bug 1|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/model/pieceTreeTextBuffer/pieceTreeTextBuffer.test|title=centralized lineStarts with CRLF random bug 6|occurrence=1 Inherited pieceTreeTextBuffer.test|title=centralized lineStarts with CRLF random bug 6|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/model/pieceTreeTextBuffer/pieceTreeTextBuffer.test|title=centralized lineStarts with CRLF random bug 8|occurrence=1 Inherited pieceTreeTextBuffer.test|title=centralized lineStarts with CRLF random bug 8|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/model/pieceTreeTextBuffer/pieceTreeTextBuffer.test|title=centralized lineStarts with CRLF random chunk bug 1|occurrence=1 Inherited pieceTreeTextBuffer.test|title=centralized lineStarts with CRLF random chunk bug 1|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/model/pieceTreeTextBuffer/pieceTreeTextBuffer.test|title=centralized lineStarts with CRLF random chunk bug 2|occurrence=1 Inherited pieceTreeTextBuffer.test|title=centralized lineStarts with CRLF random chunk bug 2|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/model/pieceTreeTextBuffer/pieceTreeTextBuffer.test|title=random is unsupervised random chunks 2|occurrence=1 Inherited pieceTreeTextBuffer.test|title=random is unsupervised random chunks 2|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/model/pieceTreeTextBuffer/pieceTreeTextBuffer.test|title=random is unsupervised random chunks|occurrence=1 Inherited pieceTreeTextBuffer.test|title=random is unsupervised random chunks|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/model/model.test|title=Editor Model - Model Line Separators Bug 13333:Model should line break on lonely CR too|occurrence=1 Inherited model.test|title=Editor Model - Model Line Separators Bug 13333:Model should line break on lonely CR too|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/model/textModel.test|title=TextModelData.fromString multiline text|occurrence=1 Inherited textModel.test|title=TextModelData.fromString multiline text|occurrence=1