t4018: test cases showing that the cpp pattern misses many anchor points

Most of the tests show C++ code, but there is also a union definition and
a GNU style function definition that are not recognized.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t4018/cpp-class-constructor

@@ -0,0 +1,5 @@
+Item::Item(int RIGHT)
+{
+	ChangeMe;
+	broken;
+}

t/t4018/cpp-class-constructor-mem-init

@@ -0,0 +1,6 @@
+Item::Item(int RIGHT) :
+	member(0)
+{
+	ChangeMe;
+	broken;
+}

t/t4018/cpp-class-destructor

@@ -0,0 +1,5 @@
+RIGHT::~RIGHT()
+{
+	ChangeMe;
+	broken;
+}

t/t4018/cpp-function-returning-global-type

@@ -0,0 +1,5 @@
+::Item get::it::RIGHT()
+{
+	ChangeMe;
+	broken;
+}

t/t4018/cpp-function-returning-nested

@@ -0,0 +1,6 @@
+get::Item get::it::RIGHT()
+{
+	ChangeMe;
+	broken;
+}
+

t/t4018/cpp-function-returning-reference

@@ -0,0 +1,5 @@
+string& get::it::RIGHT(char *ptr)
+{
+	ChangeMe;
+	broken;
+}

t/t4018/cpp-gnu-style-function

@@ -0,0 +1,6 @@
+const char *
+RIGHT(int arg)
+{
+	ChangeMe;
+	broken;
+}

t/t4018/cpp-namespace-definition

@@ -0,0 +1,5 @@
+namespace RIGHT
+{
+	ChangeMe;
+	broken;
+}

t/t4018/cpp-operator-definition

@@ -0,0 +1,5 @@
+Value operator+(Value LEFT, Value RIGHT)
+{
+	ChangeMe;
+	broken;
+}

t/t4018/cpp-struct-single-line

@@ -0,0 +1,8 @@
+void wrong()
+{
+}
+
+struct RIGHT_iterator_tag {};
+
+int ChangeMe;
+// broken

t/t4018/cpp-template-function-definition

@@ -0,0 +1,5 @@
+template<class T> int RIGHT(T arg)
+{
+	ChangeMe;
+	broken;
+}

t/t4018/cpp-union-definition

@@ -0,0 +1,5 @@
+union RIGHT {
+	double v;
+	int ChangeMe;
+	broken;
+};