[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/sync1.d

@@ -0,0 +1,8 @@
+module sync1;
+
+void main()
+{
+    int i;
+    int j;
+    synchronized j = i;
+}