Reorder language in the CompileUnit description and add a comment.

Language may only be a temporary addition.

llvm-svn: 195296
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
index 2115386..02b984e 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
@@ -42,6 +42,9 @@
   /// Node - MDNode for the compile unit.
   DICompileUnit Node;
 
+  /// Language - Language for the translation unit associated with this CU.
+  uint16_t Language;
+
   /// CUDie - Compile unit debug information entry.
   ///
   const OwningPtr<DIE> CUDie;
@@ -93,8 +96,6 @@
   // DIEIntegerOne - A preallocated DIEValue because 1 is used frequently.
   DIEInteger *DIEIntegerOne;
 
-  uint16_t Language;
-
 public:
   CompileUnit(unsigned UID, DIE *D, DICompileUnit CU, AsmPrinter *A,
               DwarfDebug *DW, DwarfUnits *DWU);