AbstractDJDocument and related classes to make them faster.
Re-indeting a large file used to run almost instantaneously; now it
doesn't and I don't know why. The indenter behaves as if the
cache is involidated between indents.
The followling files were modified.
M src/edu/rice/cs/drjava/model/definitions/indent/ActionStartPrevLinePlusMultilinePreserve.java
M src/edu/rice/cs/drjava/model/definitions/indent/ActionStartPrevStmtPlus.java
M src/edu/rice/cs/drjava/model/definitions/indent/ActionStartPrevStmtPlusTest.java
M src/edu/rice/cs/drjava/model/definitions/indent/QuestionCurrLineStartsWithSkipComments.java
M src/edu/rice/cs/drjava/model/definitions/indent/QuestionCurrLineStartsWithSkipCommentsTest.java
M src/edu/rice/cs/drjava/model/definitions/indent/ActionBracePlusTest.java
M src/edu/rice/cs/drjava/model/definitions/indent/ActionBracePlus.java
M src/edu/rice/cs/drjava/model/definitions/indent/IndentRuleWithTraceTest.java
M src/edu/rice/cs/drjava/model/definitions/indent/ActionStartStmtOfBracePlus.java
M src/edu/rice/cs/drjava/model/definitions/indent/ActionStartStmtOfBracePlusTest.java
M src/edu/rice/cs/drjava/model/definitions/indent/ActionStartCurrStmtPlus.java
M src/edu/rice/cs/drjava/model/definitions/indent/ActionStartPrevLinePlus.java
M src/edu/rice/cs/drjava/model/definitions/indent/Indenter.java
M src/edu/rice/cs/drjava/model/definitions/indent/ActionStartPrevLinePlusMultiline.java
M src/edu/rice/cs/drjava/model/definitions/reducedmodel/AbstractReducedModel.java
M src/edu/rice/cs/drjava/model/definitions/reducedmodel/TokenList.java
M src/edu/rice/cs/drjava/model/definitions/IndentHelperTest.java
M src/edu/rice/cs/drjava/model/definitions/IndentTest.java
M src/edu/rice/cs/drjava/model/AbstractDJDocument.java
M src/edu/rice/cs/drjava/model/DummyOpenDefDoc.java
M src/edu/rice/cs/drjava/model/AbstractGlobalModel.java
M src/edu/rice/cs/drjava/model/DJDocument.java
M src/edu/rice/cs/drjava/ui/MainFrame.java