[OpenMP] Parsing + sema for defaultmap clause.

Summary:
This patch adds parsing + sema for the defaultmap clause associated with the target directive (among others).

Reviewers: ABataev

Differential Revision: http://reviews.llvm.org/D16527

llvm-svn: 258817
diff --git a/clang/lib/AST/StmtProfile.cpp b/clang/lib/AST/StmtProfile.cpp
index 2ea0243..0ddb928 100644
--- a/clang/lib/AST/StmtProfile.cpp
+++ b/clang/lib/AST/StmtProfile.cpp
@@ -631,6 +631,8 @@
   }
 }
 
+void OMPClauseProfiler::VisitOMPDefaultmapClause(const OMPDefaultmapClause *) {}
+
 void StmtProfiler::VisitExpr(const Expr *S) {
   VisitStmt(S);
 }