[PropertyAccess] Throw exception on nonexistant "index" on read access
feature#9148 [PropertyAccessor] Throw exception on nonexistant "index" on read access (fabpot)

This PR was merged into the master branch.

Discussion
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[PropertyAccessor] Throw exception on nonexistant "index" on read access

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | a kind of?
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | 7881
| License       | MIT
| Doc PR        |

See discussion on issue #7881.

Commits
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e73742a [PropertyAccess] Throw exception on nonexistant "index" on read access