Remove the ASTContext parameter from the getBody() methods of Decl and subclasses.

Timings showed no significant difference before and after the commit.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74504 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/DeclPrinter.cpp b/lib/AST/DeclPrinter.cpp
index d326830..b46656a 100644
--- a/lib/AST/DeclPrinter.cpp
+++ b/lib/AST/DeclPrinter.cpp
@@ -361,7 +361,7 @@
     } else
       Out << ' ';
 
-    D->getBody(Context)->printPretty(Out, Context, 0, SubPolicy, Indentation);
+    D->getBody()->printPretty(Out, Context, 0, SubPolicy, Indentation);
     Out << '\n';
   }
 }