Factor some of the constants+context related code out into a separate header, to make LLVMContextImpl.h
not hideous.  Also, fix some MSVC compile errors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78115 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-db/CLIDebugger.h b/tools/llvm-db/CLIDebugger.h
index 0595b3d..349c5e6 100644
--- a/tools/llvm-db/CLIDebugger.h
+++ b/tools/llvm-db/CLIDebugger.h
@@ -24,7 +24,7 @@
   struct SourceLanguage;
   class ProgramInfo;
   class RuntimeInfo;
-  class LLVMContext;
+  struct LLVMContext;
 
   /// CLIDebugger - This class implements the command line interface for the
   /// LLVM debugger.