Put Target definitions inside Target specific header, and llvm namespace.

llvm-svn: 76344
diff --git a/llvm/lib/Target/ARM/ARMTargetMachine.cpp b/llvm/lib/Target/ARM/ARMTargetMachine.cpp
index a207871..08bb382 100644
--- a/llvm/lib/Target/ARM/ARMTargetMachine.cpp
+++ b/llvm/lib/Target/ARM/ARMTargetMachine.cpp
@@ -29,11 +29,10 @@
                               cl::desc("Disable if-conversion pass"));
 
 // Register the target.
-extern Target TheARMTarget;
-static RegisterTarget<ARMTargetMachine>   X(TheARMTarget, "arm",   "ARM");
+static RegisterTarget<ARMTargetMachine>   X(llvm::TheARMTarget, "arm",   "ARM");
 
-extern Target TheThumbTarget;
-static RegisterTarget<ThumbTargetMachine> Y(TheThumbTarget, "thumb", "Thumb");
+static RegisterTarget<ThumbTargetMachine> Y(llvm::TheThumbTarget, "thumb", 
+                                            "Thumb");
 
 // Force static initialization.
 extern "C" void LLVMInitializeARMTarget() { }