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.

ir/irfunction.h

@@ -18,11 +18,16 @@ struct IrFunction : IrBase
 
     bool queued;
     bool defined;
-    llvm::Value* retArg;
-    llvm::Value* thisVar;
-    llvm::Value* nestedVar;
+    
+    llvm::Value* retArg; // return in ptr arg
+    llvm::Value* thisArg; // class/struct 'this' arg
+    llvm::Value* nestArg; // nested function 'this' arg
+    
+    llvm::Value* nestedVar; // nested var alloca
+    
     llvm::Value* _arguments;
     llvm::Value* _argptr;
+    
     llvm::Constant* dwarfSubProg;
 
     llvm::AllocaInst* srcfileArg;