GROOVY-5940: groovydoc does not show class hierarchy correctly
spike for GROOVY-4701
GROOVY-5939: groovydoc does not show link for property type
Updated groovy.lang.Tuple javadoc
Original seems to have been mistakenly copied from IntRange
Merge pull request #127 from timyates/TupleJavadoc

Updated groovy.lang.Tuple javadoc
Merge pull request #126 from paulk-asert/groovy4701

GROOVY-4701: MissingMethodException#printStackTrace() throws exception if an arguments toString() method fails
GROOVY-4701: MissingMethodException#printStackTrace() throws exception if an arguments toString() method fails (test)
GROOVY-5931: groovy.util.slurpersupport.GPathResult is not java.lang.Iterable
Groovy-5937: groovydoc does not document type alias for property correctly
Merge pull request #124 from andresteingress/GROOVY-5940

GROOVY-5940: groovydoc does not show class hierarchy correctly
GROOVY-5940: groovydoc does not show class hierarchy correctly (minor tweak)
GROOVY-5939: groovydoc does not show link for property type/GROOVY-5937: groovydoc does not document type alias for property correctly
Fix some NoClassDefFoundError and some runtime errors by correcting the base class
GROOVY-5953 enable faster invocation path and fix contructor call path
GROOVY-4458 fix call site caching bug in that a numeric operation did not check the receiver to change to for exmaple null