commit 853931ff8e4df815699c30c2948b5a51aa4a206d
author Miao Wang <miaowang@google.com> Mon Mar 19 17:04:50 2018 -0700
committer Miao Wang <miaowang@google.com> Wed Mar 21 17:12:17 2018 -0700
tree fa6d086b020cc253c95ea5f3ed655138c978b794
parent ffe5af449bec718af0e1c69ab2ad90d134ad4efe

Add a field in ModelBuilder to indicate whether the model is invalid or
not.

  - Mutating an invalid model is disallowed, and will return BAD_STATE.
  - Currently only validation failures caught during finish() will flip
  this flag to true.
  - Slightly modify the validation cases to not expect finish() to always
  succeed.

Bug: 75980486
Test: mm
Test: ValidationTestModel.SetOperandValueFromMemory
Test: NeuralNetworkTests (no new test failures)
Change-Id: If9289b65501266baf9048d8cdc621b64064e90ec