Keep track of how jump targets have been met

This commit registers for each jump target how we met it, as a flag. It
also keeps track of which pointers in global data have been involved in
materialization performed by SET: those who are not are of special
interest for us, since they are likely function pointers, and are
therefore marked with a specific flag.

codegenerator.cpp

@@ -964,6 +964,8 @@ void CodeGenerator::translate(uint64_t VirtualAddress,
 
   JumpTargets.translateIndirectJumps();
 
+  JumpTargets.finalizeJumpTargets();
+
   purgeDeadBlocks(MainFunction);
   Translator.finalizeNewPCMarkers(CoveragePath, EnableTracing);
   Debug->generateDebugInfo();