Un-tabify source files, NFC.

llvm-svn: 283657
diff --git a/clang/lib/AST/ExprConstant.cpp b/clang/lib/AST/ExprConstant.cpp
index 198e299..5413ceb 100644
--- a/clang/lib/AST/ExprConstant.cpp
+++ b/clang/lib/AST/ExprConstant.cpp
@@ -5294,8 +5294,8 @@
 
       if (BaseAlignment < Align) {
         Result.Designator.setInvalid();
-	// FIXME: Quantities here cast to integers because the plural modifier
-	// does not work on APSInts yet.
+        // FIXME: Quantities here cast to integers because the plural modifier
+        // does not work on APSInts yet.
         CCEDiag(E->getArg(0),
                 diag::note_constexpr_baa_insufficient_alignment) << 0
           << (int) BaseAlignment.getQuantity()