Reorder language in the CompileUnit description and add a comment.

Language may only be a temporary addition.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195296 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/AsmPrinter/DwarfCompileUnit.h

@@ -42,6 +42,9 @@ class CompileUnit {
   /// 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 @@ class CompileUnit {
   // 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);