Keep the parentheses in #pragma message (partial revert of r179771).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179862 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Frontend/PrintPreprocessedOutput.cpp

@@ -419,7 +419,7 @@ void PrintPPOutputPPCallbacks::PragmaMessage(SourceLocation Loc,
     OS << Namespace << ' ';
   switch (Kind) {
     case PMK_Message:
-      OS << "message \"";
+      OS << "message(\"";
       break;
     case PMK_Warning:
       OS << "warning \"";
@@ -440,6 +440,8 @@ void PrintPPOutputPPCallbacks::PragmaMessage(SourceLocation Loc,
          << (char)('0'+ ((Char >> 0) & 7));
   }
   OS << '"';
+  if (Kind == PMK_Message)
+    OS << ')';
   setEmittedDirectiveOnThisLine();
 }
 

test/Lexer/pragma-message2.c

 // RUN: %clang_cc1 -E -Werror -verify %s 2>&1 | FileCheck %s
 
 #pragma message "\\test" // expected-warning {{\test}}
-// CHECK: #pragma message "\134test"
+// CHECK: #pragma message("\134test")
 
 #pragma message("\\test") // expected-warning {{\test}}
-// CHECK: #pragma message "\134test"
+// CHECK: #pragma message("\134test")
 
 #pragma GCC warning "\"" "te" "st" "\"" // expected-warning {{"test"}}
 // CHECK: #pragma GCC warning "\042test\042"

test/Lexer/pragma-operators.cpp

@@ -32,6 +32,6 @@ B(foo)
 // CHECK: #pragma comment(lib, "libfoo")
 // CHECK: #pragma clang diagnostic ignored "-Wunused"
 // CHECK: #pragma clang diagnostic error "-Wunused"
-// CHECK: #pragma message "\042Hello\042, world!"
+// CHECK: #pragma message("\042Hello\042, world!")
 // CHECK: 0;
 int n = pragma_L pragma_u8 pragma_u pragma_U pragma_R pragma_UR pragma_hello 0;