Source information in 'expected relocatable expression' diagnostic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149105 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCAssembler.cpp b/lib/MC/MCAssembler.cpp
index d150941..0087f67 100644
--- a/lib/MC/MCAssembler.cpp
+++ b/lib/MC/MCAssembler.cpp
@@ -243,7 +243,7 @@
   ++stats::evaluateFixup;
 
   if (!Fixup.getValue()->EvaluateAsRelocatable(Target, Layout))
-    report_fatal_error("expected relocatable expression");
+    getContext().FatalError(Fixup.getLoc(), "expected relocatable expression");
 
   bool IsPCRel = Backend.getFixupKindInfo(
     Fixup.getKind()).Flags & MCFixupKindInfo::FKF_IsPCRel;