PR17290: Use 'false' macro in fix-it hint for initializing a variable of type
_Bool in C, if the macro is defined. Also teach FixItUtils to look at whether
the macro was defined at the source location for which it is creating a fixit,
rather than looking at whether it's defined *now*. This is especially relevant
for analysis-based warnings which are delayed until end of TU.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@191057 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp
index a4fb3cf..426bf68 100644
--- a/lib/Sema/SemaChecking.cpp
+++ b/lib/Sema/SemaChecking.cpp
@@ -5328,7 +5328,8 @@
     if (!Loc.isMacroID() || CC.isMacroID())
       S.Diag(Loc, diag::warn_impcast_null_pointer_to_integer)
           << T << clang::SourceRange(CC)
-          << FixItHint::CreateReplacement(Loc, S.getFixItZeroLiteralForType(T));
+          << FixItHint::CreateReplacement(Loc,
+                                          S.getFixItZeroLiteralForType(T, Loc));
   }
 
   if (!Source->isIntegerType() || !Target->isIntegerType())