Rename AnalysisContext to AnalysisDeclContext.  Not only is this name more accurate, but it frees up the name AnalysisContext for other uses.

llvm-svn: 142782
diff --git a/clang/lib/Analysis/ReachableCode.cpp b/clang/lib/Analysis/ReachableCode.cpp
index 4931771..62575f9 100644
--- a/clang/lib/Analysis/ReachableCode.cpp
+++ b/clang/lib/Analysis/ReachableCode.cpp
@@ -287,7 +287,7 @@
   return count;
 }
   
-void FindUnreachableCode(AnalysisContext &AC, Callback &CB) {
+void FindUnreachableCode(AnalysisDeclContext &AC, Callback &CB) {
   CFG *cfg = AC.getCFG();
   if (!cfg)
     return;