[RecursiveASTVisitor] Visit the implicit expression of a CXXDefaultArgExpr
Summary:
The matcher
varDecl(hasDescendant(
callExpr(hasDeclaration(functionDecl(unless(isNoThrow()))))))
didn't match calls from default arguments because the expression
for a CXXDefaultArgExpr was not visited.
Reviewers: klimek, jdennett, alexfh, aaron.ballman
Subscribers: aaron.ballman, cfe-commits
Differential Revision: https://reviews.llvm.org/D25992