Add isClosure() predicate. This is used to add DW_AT_APPLE_block attribute.

Patch by Caroline Tice.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80061 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/AsmPrinter/DwarfDebug.cpp

@@ -695,10 +695,7 @@ void DwarfDebug::ConstructTypeDIE(CompileUnit *DW_Unit, DIE &Buffer,
       Buffer.AddChild(ElemDie);
     }
 
-    // FIXME: We'd like an API to register additional attributes for the
-    // frontend to use while synthesizing, and then we'd use that api in clang
-    // instead of this.
-    if (Name == "__block_literal_generic")
+    if (CTy.isClosure())
       AddUInt(&Buffer, dwarf::DW_AT_APPLE_block, dwarf::DW_FORM_flag, 1);
 
     unsigned RLang = CTy.getRunTimeLang();