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/asm.rs

@@ -16,6 +16,7 @@ use builder::Builder;
 use value::Value;
 
 use rustc::hir;
+use traits::BuilderMethods;
 
 use mir::place::PlaceRef;
 use mir::operand::OperandValue;