[PATCH] D14506: Porting shouldVisitImplicitCode to DataRecursiveASTVisitor.

[Ben Craig via cfe-commits]

bcraig created this revision.
bcraig added reviewers: zaks.anna, rsmith.
bcraig added a subscriber: cfe-commits.
Herald added a subscriber: klimek.

RecursiveASTVisitor allows visitors to specify whether they wish to visit
implicitly created code or not.  I have ported that code over to
DataRecursiveASTVisitor.

DataRecursiveASTVisitor didn't have any tests before this change, so I forked
RecursiveASTVisitorTestExprVisitor.  This test exercised some
defaultArgumentWasInherited() cases, so I got those working as well.

I plan on using this new feature in a checker that searches for excess padding.

http://reviews.llvm.org/D14506

Files:
  include/clang/AST/DataRecursiveASTVisitor.h
  unittests/Tooling/CMakeLists.txt
  unittests/Tooling/DataRecursiveASTVisitorTestExprVisitor.cpp
  unittests/Tooling/LookupTest.cpp
  unittests/Tooling/TestVisitor.h

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