When emitting a preprocessed file with implicit module imports, make sure line directives are emitted in the next line.

rdar://13722737

llvm-svn: 180718

clang/lib/Frontend/PrintPreprocessedOutput.cpp

@@ -335,6 +335,7 @@ void PrintPPOutputPPCallbacks::InclusionDirective(SourceLocation HashLoc,
     MoveToLine(HashLoc);
     OS << "@import " << Imported->getFullModuleName() << ";"
        << " /* clang -E: implicit import for \"" << File->getName() << "\" */";
+    EmittedTokensOnThisLine = true;
   }
 }
 

clang/test/Preprocessor/pp-modules.c

@@ -9,3 +9,7 @@ int bar();
 int foo();
 // CHECK: @import Module; /* clang -E: implicit import for "{{.*Headers[/\\]Module.h}}" */
 #include <Module/Module.h>
+
+#include "pp-modules.h" // CHECK: # 1 "{{.*}}pp-modules.h" 1
+// CHECK: @import Module; /* clang -E: implicit import for "{{.*}}Module.h" */{{$}}
+// CHECK: # 14 "{{.*}}pp-modules.c" 2