Added pragma(llvmdc, "string") for misc per-module compiler configuration, currently "string" can only be "verbose" which forces -vv for module it appears in.

Reimplemented support for nested functions/class using a new approach.
Added error on taking address of intrinsic.
Fixed problems with the ->syntaxCopy of TypeFunction delegate exp.
Removed DtoDType and replaced all uses with ->toBasetype() instead.
Removed unused inplace stuff.
Fixed a bunch of issues in the runtime unittests, not complete yet.
Added mini tests.

tests/mini/nested16.d

@@ -0,0 +1,31 @@
+module mini.nested16;
+
+void main()
+{
+    int idx = 123;
+    int func(int* idp)
+    {
+        void foo()
+        {
+            void bar(int* idp)
+            {
+                auto c = new class
+                {
+                    void mem()
+                    {
+                        scope(exit) ++*idp;
+                    }
+                };
+                auto dg = () {
+                    c.mem();
+                };
+                dg();
+            }
+            bar(idp);
+            ++*idp;
+        }
+        foo();
+        return ++*idp;
+    }
+    assert(func(&idx) == 126);
+}