Remove getStrValue method from Constant implementations.  The AssemblyWriter now knows how to write out a constant, not the constants themselves.  This is fixed due to the move of the AsmWriter to the VMcore library.
Remove getStrValue method from Constant implementations.  The AssemblyWriter
now knows how to write out a constant, not the constants themselves.  This is
fixed due to the move of the AsmWriter to the VMcore library.


git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@2297 91177308-0d34-0410-b5e6-96231b3b80d8

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