[clang] NFC: adjust indentation of statements with more than one lines

Hi,

I think it will be more beautiful to adjust indentation of statements with more than one lines.

In function TreeTransform<Derived>::TransformDependentScopeDeclRefExpr
the second line of statement
NestedNameSpecifierLoc QualifierLoc \newline = getDerived().TransformNestedNameSpecifierLoc(E->getQualifierLoc());
is no more indent than the first line

There is a similar case in function TreeTransform<Derived>::TransformUnresolvedMemberExpr

Also I use clang-format to fix above functions

Thanks alot

Reviewed By: pengfei

Differential Revision: https://reviews.llvm.org/D104145