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[DexTer] Add step.UNKNOWN check for NoneType line numbers.

Authored by TWeaver on Mar 16 2020, 9:38 AM.

Description

[DexTer] Add step.UNKNOWN check for NoneType line numbers.

Summary: It's possible for an instance of the visual studio debugger
to return a NoneType line number location when stepping during a
debugging session.

This patches teaches DexTer how to handle this particular case without
crashing out.

Reviewers: Orlando

Differential revision: https://reviews.llvm.org/D75992

Details

Committed
TWeaverMar 16 2020, 9:38 AM
Differential Revision
D75992: [DEXTER] Add step.UNKNOWN check to DexTer for None valued steps.
Parents
rG07a41544fde9: Minor fix to a comment in CodeGenPrepare.cpp
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