Preparations to track identifiers and declarations so that we can
generate good html links as pretty printer output:
- brought over old code and adjusted it
- initial hookups, nothing really running yet
R=r
OCL=21383
CL=21383
(e.g.: pretty -d pretty.go will print the Makefile dep. rules of the involved
Go files that are not part of the installed library)
- minor fix in pretty printer (tested against ken's test files)
R=r
OCL=17872
CL=17872