[PowerPC] Rename some more VK_PPC_ enums

This renames more VK_PPC_ enums, to make them more closely reflect
the @modifier string they represent.  This also prepares for adding
a bunch of new VK_PPC_ enums in upcoming patches.

For consistency, some MO_ flags related to VK_PPC_ enums are
likewise renamed.

No change in behaviour.

llvm-svn: 184547
diff --git a/llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp b/llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp
index 59a5ef9..752b6f7 100644
--- a/llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp
+++ b/llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp
@@ -546,7 +546,7 @@
 }
 
 /// Extract @l/@ha modifier from expression.  Recursively scan
-/// the expression and check for VK_PPC_ADDR16_HA/VK_PPC_ADDR16_LO
+/// the expression and check for VK_PPC_LO / VK_PPC_HA
 /// symbol variants.  If all symbols with modifier use the same
 /// variant, return the corresponding PPCMCExpr::VariantKind,
 /// and a modified expression using the default symbol variant.
@@ -566,11 +566,11 @@
     const MCSymbolRefExpr *SRE = cast<MCSymbolRefExpr>(E);
 
     switch (SRE->getKind()) {
-    case MCSymbolRefExpr::VK_PPC_ADDR16_HA:
-      Variant = PPCMCExpr::VK_PPC_HA16;
+    case MCSymbolRefExpr::VK_PPC_LO:
+      Variant = PPCMCExpr::VK_PPC_LO;
       break;
-    case MCSymbolRefExpr::VK_PPC_ADDR16_LO:
-      Variant = PPCMCExpr::VK_PPC_LO16;
+    case MCSymbolRefExpr::VK_PPC_HA:
+      Variant = PPCMCExpr::VK_PPC_HA;
       break;
     default:
       return 0;