[DWARF] Introduce Dump Options

This commit introduces a structure that holds all the flags that
control the pretty printing of dwarf output.

Patch by Spyridoula Gravani!

Differential Revision: https://reviews.llvm.org/D33749

llvm-svn: 304446
diff --git a/llvm/lib/DebugInfo/DWARF/DWARFContext.cpp b/llvm/lib/DebugInfo/DWARF/DWARFContext.cpp
index 5ed55ce..1be156d 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFContext.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFContext.cpp
@@ -84,8 +84,12 @@
   Accel.dump(OS);
 }
 
-void DWARFContext::dump(raw_ostream &OS, DIDumpType DumpType, bool DumpEH,
-                        bool SummarizeTypes) {
+void DWARFContext::dump(raw_ostream &OS, DIDumpOptions DumpOpts){
+
+  DIDumpType DumpType = DumpOpts.DumpType;
+  bool DumpEH = DumpOpts.DumpEH;
+  bool SummarizeTypes = DumpOpts.SummarizeTypes;
+
   if (DumpType == DIDT_All || DumpType == DIDT_Abbrev) {
     OS << ".debug_abbrev contents:\n";
     getDebugAbbrev()->dump(OS);