Pretty print as:
  "case sizeof x:"
instead of:
  "case sizeofx:"



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@41339 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/AST/StmtPrinter.cpp b/AST/StmtPrinter.cpp
index 2c77f13..ec37f9e 100644
--- a/AST/StmtPrinter.cpp
+++ b/AST/StmtPrinter.cpp
@@ -404,8 +404,21 @@
   OS << ")";
 }
 void StmtPrinter::VisitUnaryOperator(UnaryOperator *Node) {
-  if (!Node->isPostfix())
+  if (!Node->isPostfix()) {
     OS << UnaryOperator::getOpcodeStr(Node->getOpcode());
+    
+    // Print a space if this is an "identifier operator" like sizeof or __real.
+    switch (Node->getOpcode()) {
+    default: break;
+    case UnaryOperator::SizeOf:
+    case UnaryOperator::AlignOf:
+    case UnaryOperator::Real:
+    case UnaryOperator::Imag:
+    case UnaryOperator::Extension:
+      OS << ' ';
+      break;
+    }
+  }
   PrintExpr(Node->getSubExpr());
   
   if (Node->isPostfix())