Move IR modules under repr/.

Use the cretonne::repr module as a common namespace for sub-modules defining the
in-memory representation of Cretonn IL.

src/libreader/lexer.rs

@@ -6,8 +6,8 @@
 // ====--------------------------------------------------------------------------------------====//
 
 use std::str::CharIndices;
-use cretonne::types;
-use cretonne::entities::{Value, Ebb};
+use cretonne::repr::types;
+use cretonne::repr::entities::{Value, Ebb};
 
 /// The location of a `Token` or `Error`.
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
@@ -373,8 +373,8 @@ impl<'a> Lexer<'a> {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use cretonne::types;
-    use cretonne::entities::{Value, Ebb};
+    use cretonne::repr::types;
+    use cretonne::repr::entities::{Value, Ebb};
 
     fn token<'a>(token: Token<'a>, line: usize) -> Option<Result<LocatedToken<'a>, LocatedError>> {
         Some(super::token(token, Location { line_number: line }))

src/libreader/parser.rs

@@ -11,11 +11,11 @@ use std::fmt::{self, Display, Formatter};
 use std::str::FromStr;
 use std::u32;
 use lexer::{self, Lexer, Token};
-use cretonne::types::{Type, VOID, FunctionName, Signature, ArgumentType, ArgumentExtension};
-use cretonne::immediates::{Imm64, Ieee32, Ieee64};
-use cretonne::entities::*;
-use cretonne::instructions::{Opcode, InstructionFormat, InstructionData, VariableArgs, JumpData,
-                             BranchData, ReturnData};
+use cretonne::repr::types::{Type, VOID, FunctionName, Signature, ArgumentType, ArgumentExtension};
+use cretonne::repr::immediates::{Imm64, Ieee32, Ieee64};
+use cretonne::repr::entities::*;
+use cretonne::repr::instructions::{Opcode, InstructionFormat, InstructionData, VariableArgs,
+                                   JumpData, BranchData, ReturnData};
 use cretonne::repr::{Function, StackSlotData};
 
 pub use lexer::Location;
@@ -1039,7 +1039,7 @@ impl<'a> Parser<'a> {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use cretonne::types::{self, ArgumentType, ArgumentExtension};
+    use cretonne::repr::types::{self, ArgumentType, ArgumentExtension};
 
     #[test]
     fn argument_type() {