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2009-04-24 Emmanuel Briot <briot@adacore.com> * prj-proc.adb, make.adb, mlib-prj.adb, prj.adb, prj.ads, makeutl.adb, clean.adb, prj-nmsc.adb, prj-env.adb, prj-env.ads (Project_Data.Seen): field removed. This is not a property of the project, just a boolean used to traverse the project tree, and storing it in the structure prevents doing multiple traversal in parallel. (Project_Data.Checked): also removed, since it was playing the same role as Seen when we had two nested loops, and this is no longer necessary (For_All_Imported_Projects): removed, since in fact there was already the equivalent in For_Every_Project_Imported. The latter was rewritten to use a local hash table instead of Project_Data.Seen Various loops were rewritten to use For_Every_Project_Imported, thus removing the need for Project_Data.Seen. This avoids a lot of code duplication From-SVN: r146699
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