Remove string conversion cache
Remove string conversion cache

When flow bifurcates, we can incorrectly use the cache on a branch we have not
traversed. Determine which paths are used is non-trivial (it would require
building a CFG).

Change-Id: I27fcb51e202121eed79c1d16dbfaddca102a1f27

apmasell/flabbergast,flabbergast-config/flabbergast,apmasell/flabbergast,flabbergast-config/flabbergast,apmasell/flabbergast,flabbergast-config/flabbergast,apmasell/flabbergast,flabbergast-config/flabbergast,apmasell/flabbergast,flabbergast-config/flabbergast,apmasell/flabbergast