Fold arrays down to a single element.  This causes huge wins on some benchmarks for example: 197.parser (64M->14M), 164.gzip (14M->2.7M).  The actual graphs represented should not change at all.
Fold arrays down to a single element.  This causes huge wins on some benchmarks
for example: 197.parser (64M->14M), 164.gzip (14M->2.7M).  The actual graphs
represented should not change at all.


git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@4643 91177308-0d34-0410-b5e6-96231b3b80d8

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