Provide InitializeAllTargets and InitializeNativeTarget functions in the

C bindings.  Change all the backend "Initialize" functions to have C linkage.
Change the "llvm/Config/Targets.def" header to use C-style comments to avoid
compile warnings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74026 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/X86/AsmPrinter/X86AsmPrinter.cpp

@@ -47,8 +47,5 @@ namespace {
 extern "C" int X86AsmPrinterForceLink;
 int X86AsmPrinterForceLink = 0;
 
-// Force static initialization when called from
-// llvm/InitializeAllAsmPrinters.h
-namespace llvm {
-  void InitializeX86AsmPrinter() { }
-}
+// Force static initialization.
+extern "C" void LLVMInitializeX86AsmPrinter() { }