Allow breaking after the return type in function declarations.

This has so far been disabled for Google style, but should be done
before breaking at nested name specifiers or in template parameters.

Before (in Google style):
template <typename T>
aaaaaaaa::aaaaa::aaaaaa<T, aaaaaaaaaaaaaaaaaaaaaaaaa> aaaaaaaaaaaaaaaaaaaaaaaa<
    T>::aaaaaaa() {}

After:
template <typename T>
aaaaaaaa::aaaaa::aaaaaa<T, aaaaaaaaaaaaaaaaaaaaaaaaa>
aaaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaa() {}

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175074 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 8 insertions, 0 deletions

diff --git a/unittests/Format/FormatTest.cpp b/unittests/Format/FormatTest.cpp
index 8fb4b2acd5..f72aad7aad 100644
--- a/unittests/Format/FormatTest.cpp
+++ b/unittests/Format/FormatTest.cpp
@@ -1763,6 +1763,14 @@ TEST_F(FormatTest, BreaksFunctionDeclarations) {
   verifyGoogleFormat(
       "TypeSpecDecl* TypeSpecDecl::Create(\n"
       "    ASTContext& C, DeclContext* DC, SourceLocation L) {\n}");
+  verifyGoogleFormat(
+      "some_namespace::LongReturnType\n"
+      "long_namespace::SomeVeryLongClass::SomeVeryLongFunction(\n"
+      "    int first_long_parameter, int second_parameter) {\n}");
+
+  verifyGoogleFormat("template <typename T>\n"
+                     "aaaaaaaa::aaaaa::aaaaaa<T, aaaaaaaaaaaaaaaaaaaaaaaaa>\n"
+                     "aaaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaa() {\n}");
 }
 
 TEST_F(FormatTest, LineStartsWithSpecialCharacter) {