[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/bug59.d

@@ -0,0 +1,20 @@
+module bug59;
+
+void main()
+{
+    int[2] a = 0;
+    //func(a);
+    a[0] = 1;
+    int i = a[0];
+    int* p = &a[0];
+}
+
+void func(int[2] a)
+{
+    int* p = cast(int*)a;
+}
+
+void func2(int[4] a)
+{
+    int* p = 3+cast(int*)a;
+}