Set symbolizer path in the test environment.

This is needed to get symbolized stack traces when running Clang tests under (A|M)San.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176934 91177308-0d34-0410-b5e6-96231b3b80d8
Fix formatting of new arrays of pointers.

Before:
A = new SomeType * [Length];
A = new SomeType *[Length]();

After:
A = new SomeType *[Length];
A = new SomeType *[Length]();

Small formatting cleanups with clang-format.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176936 91177308-0d34-0410-b5e6-96231b3b80d8