Changes

Changes from Git (git https://github.com/llvm/llvm-project.git)

Summary

  1. [SyntaxTree] Fix crash on functions with default arguments. (details)
Commit f5087d5c7248104b6580c7b079ed5f227332c2ef by ecaldas
[SyntaxTree] Fix crash on functions with default arguments.

* Do not visit `CXXDefaultArgExpr`
* To build `CallArguments` nodes, just go through non-default arguments

Differential Revision: https://reviews.llvm.org/D87249
The file was modifiedclang/lib/Tooling/Syntax/BuildTree.cpp
The file was modifiedclang/unittests/Tooling/Syntax/BuildTreeTest.cpp