Revert "[Sema] Make getCurFunction() return null outside function parsing"

This reverts r326965. It seems to have caused repeating test failures in
clang/test/Sema/diagnose_if.c on some buildbots.

I cannot reproduce the problem, and it's not immediately obvious what
the problem is, so let's revert to green.

llvm-svn: 326974

1 files changed, 1 insertions, 1 deletions

diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
index 07eb02bec06..95b56a242a6 100644
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -13126,7 +13126,7 @@ ExprResult Sema::ActOnBlockStmtExpr(SourceLocation CaretLoc,
     for (const auto &CI : Result->getBlockDecl()->captures()) {
       const VarDecl *var = CI.getVariable();
       if (var->getType().isDestructedType() != QualType::DK_none) {
-        setFunctionHasBranchProtectedScope();
+        getCurFunction()->setHasBranchProtectedScope();
         break;
       }
     }