[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/bug58.d

@@ -0,0 +1,10 @@
+module bug58;
+import std.stdio;
+void main()
+{
+    int[16] arr = [1,16,2,15,3,14,4,13,5,12,6,11,7,10,8,9];
+    writefln("arr = ",arr);
+    arr.sort;
+    writefln("arr.sort = ",arr);
+    assert(arr == [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16]);
+}