Intent of pieceTreeBase.ts ×2

All 12 exact tests in this concept. Every test is marked by where it enters the hierarchy.

mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/ 12 tests
- editor/ 12 tests
  - test/ 12 tests
    
    common/ 12 tests
    
    model/ 12 tests
    
    pieceTreeTextBuffer/ 12 tests
    
    pieceTreeTextBuffer.test|title=inserts and deletes random insert/ 2 tests
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/model/pieceTreeTextBuffer/pieceTreeTextBuffer.test|title=inserts and deletes random insert/delete \r bug 3|occurrence=1 Inherited delete \r bug 3|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/model/pieceTreeTextBuffer/pieceTreeTextBuffer.test|title=inserts and deletes random insert/delete \r bug 5|occurrence=1 Inherited rbTreeBase.ts ×1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/model/pieceTreeTextBuffer/pieceTreeTextBuffer.test|title=CRLF delete CR in CRLF 2|occurrence=1 Inherited pieceTreeTextBuffer.test|title=CRLF delete CR in CRLF 2|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/model/pieceTreeTextBuffer/pieceTreeTextBuffer.test|title=CRLF random bug 1|occurrence=1 Inherited pieceTreeTextBuffer.test|title=CRLF random bug 1|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/model/pieceTreeTextBuffer/pieceTreeTextBuffer.test|title=CRLF random bug 6|occurrence=1 Inherited pieceTreeTextBuffer.test|title=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 delete CR in CRLF 1|occurrence=1 Inherited pieceTreeTextBuffer.test|title=centralized lineStarts with CRLF delete CR in CRLF 1|occurrence=1
    
    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 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|occurrence=1 Inherited pieceTreeTextBuffer.test|title=random is unsupervised random chunks|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/model/pieceTreeTextBuffer/pieceTreeTextBuffer.test|title=random is unsupervised random insert delete|occurrence=1 Inherited pieceTreeTextBuffer.test|title=random is unsupervised random insert delete|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/common/model/pieceTreeTextBuffer/pieceTreeTextBuffer.test|title=random is unsupervised splitting large change buffer|occurrence=1 Inherited pieceTreeTextBuffer.test|title=random is unsupervised splitting large change buffer|occurrence=1