SuccessChanges

Summary

  1. [Syntax] Mark synthesized nodes as modifiable (details)
Commit 07a41018e9d27f67f7b4295eb7e00e0345c0aacf by ibiryukov
[Syntax] Mark synthesized nodes as modifiable
This was an oversight in the original patch. Also add corresponding
tests.
The file was modifiedclang/include/clang/Tooling/Syntax/Tree.h
The file was modifiedclang/unittests/Tooling/Syntax/TreeTest.cpp
The file was modifiedclang/lib/Tooling/Syntax/Synthesis.cpp