Rename IsStatic variable to Linkage in order to be a bit more descriptive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191236 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index a6de1ac..a3d2ded 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -2349,7 +2349,7 @@
 /// computeIndexValue - Compute the gdb index value for the DIE and CU.
 static dwarf::PubIndexEntryDescriptor computeIndexValue(CompileUnit *CU,
                                                         DIE *Die) {
-  dwarf::GDBIndexEntryLinkage IsStatic =
+  dwarf::GDBIndexEntryLinkage Linkage =
       Die->findAttribute(dwarf::DW_AT_external) ? dwarf::GIEL_EXTERNAL
                                                 : dwarf::GIEL_STATIC;
 
@@ -2369,10 +2369,10 @@
   case dwarf::DW_TAG_namespace:
     return dwarf::GIEK_TYPE;
   case dwarf::DW_TAG_subprogram:
-    return dwarf::PubIndexEntryDescriptor(dwarf::GIEK_FUNCTION, IsStatic);
+    return dwarf::PubIndexEntryDescriptor(dwarf::GIEK_FUNCTION, Linkage);
   case dwarf::DW_TAG_constant:
   case dwarf::DW_TAG_variable:
-    return dwarf::PubIndexEntryDescriptor(dwarf::GIEK_VARIABLE, IsStatic);
+    return dwarf::PubIndexEntryDescriptor(dwarf::GIEK_VARIABLE, Linkage);
   case dwarf::DW_TAG_enumerator:
     return dwarf::PubIndexEntryDescriptor(dwarf::GIEK_VARIABLE,
                                           dwarf::GIEL_STATIC);