s/getLowerBoundDefault/getDefaultLowerBound/ for consistency. Also put the more natural check first in the if-then statement.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169486 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
index 340e4709..bd63ff5 100644
--- a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
+++ b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
@@ -79,7 +79,9 @@
   /// corresponds to the MDNode mapped with the subprogram DIE.
   DenseMap<DIE *, const MDNode *> ContainingTypeMap;
 
-  int64_t getLowerBoundDefault() const;
+  /// getLowerBoundDefault - Return the default lower bound for an array. If the
+  /// DWARF version doesn't handle the language, return -1.
+  int64_t getDefaultLowerBound() const;
 
 public:
   CompileUnit(unsigned UID, unsigned L, DIE *D, AsmPrinter *A, DwarfDebug *DW);