New test to make sure I'm getting constness right

llvm-svn: 5041
diff --git a/llvm/test/Regression/CFrontend/2002-12-15-GlobalConstantTest.c b/llvm/test/Regression/CFrontend/2002-12-15-GlobalConstantTest.c
new file mode 100644
index 0000000..3b17941
--- /dev/null
+++ b/llvm/test/Regression/CFrontend/2002-12-15-GlobalConstantTest.c
@@ -0,0 +1,6 @@
+
+const char *W = "foo";
+const int X = 7;
+int Y = 8;
+const char * const Z = "bar";
+