Fixed rebase mistakes

src/Bundle.js

@@ -207,7 +207,7 @@ export default class Bundle {
 
 		this.orderedModules.forEach( module => {
 			module.reassignments.forEach( name => {
-				isReassignedVarDeclaration[ module.exports.lookup( name ) ] = true;
+				isReassignedVarDeclaration[ module.locals.lookup( name ).name ] = true;
 			});
 		});
 

src/Module.js

@@ -279,10 +279,6 @@ export default class Module {
 					}
 				});
 			});
-
-			keys( statement.modifies ).forEach( name => {
-				( this.modifications[ name ] || ( this.modifications[ name ] = [] ) ).push( statement );
-			});
 		});
 
 		// discover variables that are reassigned inside function