Verify bundle flags for consistency in MachineVerifier.
Verify bundle flags for consistency in MachineVerifier.

The new bidirectional bundle flags are redundant, so inadvertent bundle
tearing can be detected in the machine code verifier.

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@170463 91177308-0d34-0410-b5e6-96231b3b80d8

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