[clang-format] Add tests for spacing between ref-qualifier and noexcept. NFC.

Cf. llvm#44542.
Cf. llvm@ae1b785.

Author: mkurdej

clang/unittests/Format/FormatTest.cpp

@@ -9589,8 +9589,11 @@ TEST_F(FormatTest, UnderstandsOverloadedOperators) {
 }
 
 TEST_F(FormatTest, UnderstandsFunctionRefQualification) {
+  verifyFormat("void A::b() && {}");
+  verifyFormat("void A::b() &&noexcept {}");
   verifyFormat("Deleted &operator=(const Deleted &) & = default;");
   verifyFormat("Deleted &operator=(const Deleted &) && = delete;");
+  verifyFormat("Deleted &operator=(const Deleted &) &noexcept = default;");
   verifyFormat("SomeType MemberFunction(const Deleted &) & = delete;");
   verifyFormat("SomeType MemberFunction(const Deleted &) && = delete;");
   verifyFormat("Deleted &operator=(const Deleted &) &;");
@@ -9600,16 +9603,21 @@ TEST_F(FormatTest, UnderstandsFunctionRefQualification) {
   verifyFormat("SomeType MemberFunction(const Deleted &) && {}");
   verifyFormat("SomeType MemberFunction(const Deleted &) && final {}");
   verifyFormat("SomeType MemberFunction(const Deleted &) && override {}");
+  verifyFormat("SomeType MemberFunction(const Deleted &) &&noexcept {}");
   verifyFormat("void Fn(T const &) const &;");
   verifyFormat("void Fn(T const volatile &&) const volatile &&;");
+  verifyFormat("void Fn(T const volatile &&) const volatile &&noexcept;");
   verifyFormat("template <typename T>\n"
                "void F(T) && = delete;",
                getGoogleStyle());
 
   FormatStyle AlignLeft = getLLVMStyle();
   AlignLeft.PointerAlignment = FormatStyle::PAS_Left;
   verifyFormat("void A::b() && {}", AlignLeft);
+  verifyFormat("void A::b() && noexcept {}", AlignLeft);
   verifyFormat("Deleted& operator=(const Deleted&) & = default;", AlignLeft);
+  verifyFormat("Deleted& operator=(const Deleted&) & noexcept = default;",
+               AlignLeft);
   verifyFormat("SomeType MemberFunction(const Deleted&) & = delete;",
                AlignLeft);
   verifyFormat("Deleted& operator=(const Deleted&) &;", AlignLeft);
@@ -9620,6 +9628,29 @@ TEST_F(FormatTest, UnderstandsFunctionRefQualification) {
   verifyFormat("auto Function(T) & -> void;", AlignLeft);
   verifyFormat("void Fn(T const&) const&;", AlignLeft);
   verifyFormat("void Fn(T const volatile&&) const volatile&&;", AlignLeft);
+  verifyFormat("void Fn(T const volatile&&) const volatile&& noexcept;",
+               AlignLeft);
+
+  FormatStyle AlignMiddle = getLLVMStyle();
+  AlignMiddle.PointerAlignment = FormatStyle::PAS_Middle;
+  verifyFormat("void A::b() && {}", AlignMiddle);
+  verifyFormat("void A::b() && noexcept {}", AlignMiddle);
+  verifyFormat("Deleted & operator=(const Deleted &) & = default;",
+               AlignMiddle);
+  verifyFormat("Deleted & operator=(const Deleted &) & noexcept = default;",
+               AlignMiddle);
+  verifyFormat("SomeType MemberFunction(const Deleted &) & = delete;",
+               AlignMiddle);
+  verifyFormat("Deleted & operator=(const Deleted &) &;", AlignMiddle);
+  verifyFormat("SomeType MemberFunction(const Deleted &) &;", AlignMiddle);
+  verifyFormat("auto Function(T t) & -> void {}", AlignMiddle);
+  verifyFormat("auto Function(T... t) & -> void {}", AlignMiddle);
+  verifyFormat("auto Function(T) & -> void {}", AlignMiddle);
+  verifyFormat("auto Function(T) & -> void;", AlignMiddle);
+  verifyFormat("void Fn(T const &) const &;", AlignMiddle);
+  verifyFormat("void Fn(T const volatile &&) const volatile &&;", AlignMiddle);
+  verifyFormat("void Fn(T const volatile &&) const volatile && noexcept;",
+               AlignMiddle);
 
   FormatStyle Spaces = getLLVMStyle();
   Spaces.SpacesInCStyleCastParentheses = true;