Understand unary operators after "return" and "case".

This fixes llvm.org/PR14746.

Before: return - 1;
After:  return -1;

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171389 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/unittests/Format/FormatTest.cpp b/unittests/Format/FormatTest.cpp
index 58712ef38f..22da93ebe3 100644
--- a/unittests/Format/FormatTest.cpp
+++ b/unittests/Format/FormatTest.cpp
@@ -646,6 +646,12 @@ TEST_F(FormatTest, UnderstandsUnaryOperators) {
   verifyFormat("b ? -a : c;");
   verifyFormat("n * sizeof char16;");
   verifyFormat("sizeof(char);");
+
+  verifyFormat("return -1;");
+  verifyFormat("switch (a) {\n"
+               "case -1:\n"
+               "  break;\n"
+               "}");
 }
 
 TEST_F(FormatTest, UndestandsOverloadedOperators) {