rename MAI::PICJumpTableDirective to MAI::GPRel32Directive to
make it clear what it is, instead of how it is used.

llvm-svn: 94448
diff --git a/llvm/lib/Target/Mips/MipsMCAsmInfo.cpp b/llvm/lib/Target/Mips/MipsMCAsmInfo.cpp
index 2fa2762..c5356f0 100644
--- a/llvm/lib/Target/Mips/MipsMCAsmInfo.cpp
+++ b/llvm/lib/Target/Mips/MipsMCAsmInfo.cpp
@@ -22,5 +22,5 @@
   PrivateGlobalPrefix         = "$";
   CommentString               = "#";
   ZeroDirective               = "\t.space\t";
-  PICJumpTableDirective       = "\t.gpword\t";
+  GPRel32Directive            = "\t.gpword\t";
 }