Tests for proper pre-C++11 handling of "auto"

Author: tautschnig

regression/cpp/auto2/main.cpp

@@ -0,0 +1,4 @@
+int main()
+{
+  auto int x = 42;
+}

regression/cpp/auto2/test.desc

@@ -0,0 +1,8 @@
+CORE
+main.cpp
+
+^EXIT=0$
+^SIGNAL=0$
+--
+^warning: ignoring
+^CONVERSION ERROR$

regression/cpp/auto3/main.cpp

@@ -0,0 +1,5 @@
+int main()
+{
+  // should yield a parse error unless in C++11 (or later) mode
+  auto x = 42;
+}

regression/cpp/auto3/test.desc

@@ -0,0 +1,9 @@
+CORE
+main.cpp
+
+^EXIT=(64|1)$
+^SIGNAL=0$
+parse error
+--
+^warning: ignoring
+^CONVERSION ERROR$