tree ecda73e7faec612719cab4cd9199c8d63e5970d7
parent 2fed185afa6ed6ab3a2178fcc668692008ff72d4
author Marius Brehler <marius.brehler@iml.fraunhofer.de> 1584655600 -0700
committer Copybara-Service <copybara-worker@google.com> 1584655719 -0700

Add missing include to python bindings

The CMake build fails with

```
/home/mbrehler/repos/iree/bindings/python/pyiree/compiler/compiler.cc:64:14: error: no type named 'SetOneShotPipeSignalFunction' in namespace 'llvm::sys'
  llvm::sys::SetOneShotPipeSignalFunction(
  ~~~~~~~~~~~^
/home/mbrehler/repos/iree/bindings/python/pyiree/compiler/compiler.cc:65:18: error: definition or redeclaration of 'DefaultOneShotPipeSignalHandler' not allowed inside a function
      llvm::sys::DefaultOneShotPipeSignalHandler);
      ~~~~~~~~~~~^
/home/mbrehler/repos/iree/bindings/python/pyiree/compiler/compiler.cc:65:18: error: no member named 'DefaultOneShotPipeSignalHandler' in namespace 'llvm::sys'
      llvm::sys::DefaultOneShotPipeSignalHandler);
      ~~~~~~~~~~~^
/home/mbrehler/repos/iree/bindings/python/pyiree/compiler/compiler.cc:66:14: error: no member named 'PrintStackTraceOnErrorSignal' in namespace 'llvm::sys'
  llvm::sys::PrintStackTraceOnErrorSignal("pyiree");
```
caused by the missing include.

Closes https://github.com/google/iree/pull/1164

COPYBARA_INTEGRATE_REVIEW=https://github.com/google/iree/pull/1164 from iml130:python-includes 5a6746804fa6705b8c4270072c8ee7041ab9701e
PiperOrigin-RevId: 301903358