Generalized base.rs#call_memcpy and everything that it uses

Generalized operand.rs#nontemporal_store and fixed tidy issues

Generalized operand.rs#nontemporal_store's implem even more
With a BuilderMethod trait implemented by Builder for LLVM

Cleaned builder.rs : no more code duplication, no more ValueTrait

Full traitification of builder.rs

src/librustc_codegen_llvm/debuginfo/mod.rs

@@ -45,6 +45,7 @@ use syntax_pos::{self, Span, Pos};
 use syntax::ast;
 use syntax::symbol::{Symbol, InternedString};
 use rustc::ty::layout::{self, LayoutOf};
+use traits::BuilderMethods;
 
 pub mod gdb;
 mod utils;