[Swift CI] Build Failure: 0. OSS - LLDB Incremental - OS X (swift 3.1) #36

This looks like the incremental build issue that we saw 2-3 weeks ago
(rdar://29201272), clang's libSema wasn't fully re-compiled:

[20/64] Building DiagnosticSemaKinds.inc...
[23/64] Updating DiagnosticSemaKinds.inc...
[35/50] Building CXX object
[39/50] Building CXX object
[40/50] Building CXX object
[41/50] Linking CXX static library lib/libclangSema.a


On 8 December 2016 at 16:39, <no-reply@swift.org> wrote:

[FAILURE] oss-lldb-swift-3.1-incremental-osx [#36]
Build URL: https://ci.swift.org/job/oss-lldb-swift-3.1-incremental-osx/36/
Project: oss-lldb-swift-3.1-incremental-osx
Date of build: Thu, 08 Dec 2016 07:43:12 -0800
Build duration: 56 min Identified problems:

   - Assertion failure: This build failed because of an assertion
   failure. Below is a list of all errors in the build log:
      - Indication 1
   - Compile Error: This build failed because of a compile error. Below
   is a list of all errors in the build log:
      - Indication 1
   - Regression test failed: This build failed because a regression test
   in the test suite FAILed. Below is a list of all errors:
      - Indication 1


   - Commit *415306523048561c4211a5eab6ed8085ad9328e2* by *arphaman:*

   [ObjC++] Don't enter a C++ declarator scope when the current context is
   - *edit*: lib/Parse/ParseDecl.cpp
      - *edit*: lib/Sema/SemaCXXScopeSpec.cpp
      - *edit*: test/SemaObjCXX/crash.mm

   - Commit *80e3c5ba312cafdcd6a1b5db522eef60a2b8999a* by *arphaman:*

   Implement the -Wstrict-prototypes warning
   - *add*: test/Sema/warn-strict-prototypes.c
      - *edit*: lib/Sema/SemaDecl.cpp
      - *edit*: include/clang/Basic/DiagnosticSemaKinds.td
      - *add*: test/Sema/warn-strict-prototypes.m
      - *edit*: lib/Sema/SemaType.cpp