Reorder 'switch cases' constructs to more natural order. Merging PR #50 is done.

Author: yfakariya

src/MsgPack/Serialization/AbstractSerializers/SerializerBuilderContract`3.cs

@@ -451,7 +451,7 @@ protected override TConstruct EmitAndConditionalExpression( TContext context, IL
 			return default( TConstruct );
 		}
 
-		protected override TConstruct EmitStringSwitchStatement (TContext context, TConstruct target, TConstruct defaultCase, IDictionary<string, TConstruct> cases) {
+		protected override TConstruct EmitStringSwitchStatement ( TContext context, TConstruct target, IDictionary<string, TConstruct> cases, TConstruct defaultCase ) {
 			Contract.Requires(context != null);
 			Contract.Requires(target != null);
 			Contract.Requires(defaultCase != null);

src/MsgPack/Serialization/AbstractSerializers/SerializerBuilder`3.CommonConstructs.cs

@@ -1295,9 +1295,7 @@ TConstruct elseExpression
 		/// <param name="cases">The case statements. The keys are case condition, and values are actual statement.</param>
 		/// <param name="defaultCase">Default case expression.</param>
 		/// <returns>The switch statement.</returns>
-		protected abstract TConstruct EmitStringSwitchStatement (
-			TContext context, TConstruct target, TConstruct defaultCase, IDictionary<string, TConstruct> cases
-		);
+		protected abstract TConstruct EmitStringSwitchStatement ( TContext context, TConstruct target, IDictionary<string, TConstruct> cases, TConstruct defaultCase );
 
 		/// <summary>
 		/// 	Emits the return statement

src/MsgPack/Serialization/AbstractSerializers/SerializerBuilder`3.Object.cs

@@ -440,11 +440,6 @@ private IEnumerable<TConstruct> EmitObjectUnpackFromMapCore( TContext context, T
 							this.EmitStringSwitchStatement(
 								context,
 								key,
-								this.EmitInvokeVoidMethod(
-									context,
-									context.Unpacker,
-									typeof( Unpacker ).GetMethod( "Skip" )
-								),
 								entries.Where( e => e.Member != null ).ToDictionary(
 									entry => entry.Contract.Name,
 									entry =>
@@ -461,8 +456,13 @@ private IEnumerable<TConstruct> EmitObjectUnpackFromMapCore( TContext context, T
 											unpackedValue =>
 												this.EmitSetMemberValueStatement( context, result, entry.Member, unpackedValue )
 										)
-								)
-							);
+									), 
+									this.EmitInvokeVoidMethod(
+										context,
+										context.Unpacker,
+										typeof( Unpacker ).GetMethod( "Skip" )
+									)
+								);
 
 						return this.EmitSequentialStatements( context, typeof( void ), key, unpackKey, assigns );
 					}

src/MsgPack/Serialization/CodeDomSerializers/CodeDomSerializerBuilder`1.cs

@@ -646,7 +646,7 @@ protected override CodeDomConstruct EmitAndConditionalExpression( CodeDomContext
 				);
 		}
 
-		protected override CodeDomConstruct EmitStringSwitchStatement (CodeDomContext context, CodeDomConstruct target, CodeDomConstruct defaultCase, IDictionary<string, CodeDomConstruct> cases) {
+		protected override CodeDomConstruct EmitStringSwitchStatement ( CodeDomContext context, CodeDomConstruct target, IDictionary<string, CodeDomConstruct> cases, CodeDomConstruct defaultCase ) {
 #if DEBUG
 			Contract.Assert(target.IsExpression);
 			Contract.Assert(defaultCase.IsStatement);

src/MsgPack/Serialization/EmittingSerializers/ILEmittingSerializerBuilder`2.cs

@@ -677,7 +677,7 @@ protected override ILConstruct EmitAndConditionalExpression( TContext context, I
 		}
 
 		[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1062:ValidateArgumentsOfPublicMethods", MessageId = "2", Justification = "Asserted internally")]
-		protected override ILConstruct EmitStringSwitchStatement (TContext context, ILConstruct target, ILConstruct defaultCase, IDictionary<string, ILConstruct> cases) {
+		protected override ILConstruct EmitStringSwitchStatement ( TContext context, ILConstruct target, IDictionary<string, ILConstruct> cases, ILConstruct defaultCase ) {
 			// Simple if statements
 			ILConstruct @else = defaultCase;
 			foreach (var @case in cases) {

src/MsgPack/Serialization/ExpressionSerializers/ExpressionTreeSerializerBuilder`1.cs

@@ -467,9 +467,7 @@ ExpressionConstruct elseExpression
 				);
 		}
 
-		protected override ExpressionConstruct EmitStringSwitchStatement (
-			ExpressionTreeContext context, ExpressionConstruct target, ExpressionConstruct defaultCase, IDictionary<string, ExpressionConstruct> cases
-		) {
+		protected override ExpressionConstruct EmitStringSwitchStatement ( ExpressionTreeContext context, ExpressionConstruct target, IDictionary<string, ExpressionConstruct> cases, ExpressionConstruct defaultCase ) {
 			return
 				Expression.Switch(
 					typeof( void ),