[svn r98] Added support for std.c.stdlib.alloca via pragma(LLVM_internal, "alloca").

Added support for array .sort and .reverse properties.
Fixed some bugs with pointer arithmetic.
Disabled some DMD AST optimizations that was messing things up, destroying valuable information.
Added a KDevelop project file, this is what I use for coding LLVMDC now :)
Other minor stuff.

test/fail2.d

@@ -0,0 +1,27 @@
+module fail2;
+
+void a()
+{
+    b();
+}
+
+void b()
+{
+    c();
+}
+
+void c()
+{
+    d();
+}
+
+void d()
+{
+    int* ip;
+    int i = *ip;
+}
+
+void main()
+{
+    a();
+}