diff --git a/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/AnonymousMethodExpression.cs b/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/AnonymousMethodExpression.cs
index 34caf0551..964a4fd2a 100644
--- a/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/AnonymousMethodExpression.cs
+++ b/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/AnonymousMethodExpression.cs
@@ -94,12 +94,5 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 		public AnonymousMethodExpression(BlockStatement body, params ParameterDeclaration[] parameters) : this(body, (IEnumerable<ParameterDeclaration>)parameters)
 		{
 		}
-
-		protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
-		{
-			AnonymousMethodExpression o = other as AnonymousMethodExpression;
-			return o != null && this.IsAsync == o.IsAsync && this.HasParameterList == o.HasParameterList
-				&& this.Parameters.DoMatch(o.Parameters, match) && this.Body.DoMatch(o.Body, match);
-		}
 	}
 }
diff --git a/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/AnonymousTypeCreateExpression.cs b/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/AnonymousTypeCreateExpression.cs
index 908ddb6fe..0160c3b25 100644
--- a/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/AnonymousTypeCreateExpression.cs
+++ b/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/AnonymousTypeCreateExpression.cs
@@ -66,12 +66,6 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 		public AnonymousTypeCreateExpression(params Expression[] initializer) : this((IEnumerable<Expression>)initializer)
 		{
 		}
-
-		protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
-		{
-			var o = other as AnonymousTypeCreateExpression;
-			return o != null && this.Initializers.DoMatch(o.Initializers, match);
-		}
 	}
 }
 
diff --git a/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/ArrayCreateExpression.cs b/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/ArrayCreateExpression.cs
index aece68c6b..de1a58ff7 100644
--- a/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/ArrayCreateExpression.cs
+++ b/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/ArrayCreateExpression.cs
@@ -16,7 +16,6 @@
 // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 // DEALINGS IN THE SOFTWARE.
 
-
 namespace ICSharpCode.Decompiler.CSharp.Syntax
 {
 	/// <summary>
@@ -54,13 +53,5 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 			get { return GetChildByRole(InitializerRole); }
 			set { SetChildByRole(InitializerRole, value); }
 		}
-		protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
-		{
-			ArrayCreateExpression o = other as ArrayCreateExpression;
-			return o != null && this.Type.DoMatch(o.Type, match)
-				&& this.Arguments.DoMatch(o.Arguments, match)
-				&& this.AdditionalArraySpecifiers.DoMatch(o.AdditionalArraySpecifiers, match)
-				&& this.Initializer.DoMatch(o.Initializer, match);
-		}
 	}
 }
diff --git a/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/ArrayInitializerExpression.cs b/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/ArrayInitializerExpression.cs
index 53b06f1e4..3702f18cb 100644
--- a/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/ArrayInitializerExpression.cs
+++ b/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/ArrayInitializerExpression.cs
@@ -59,12 +59,6 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 		public CSharpTokenNode RBraceToken {
 			get { return GetChildByRole(Roles.RBrace); }
 		}
-
-		protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
-		{
-			ArrayInitializerExpression o = other as ArrayInitializerExpression;
-			return o != null && this.Elements.DoMatch(o.Elements, match);
-		}
 	}
 }
 
diff --git a/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/AsExpression.cs b/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/AsExpression.cs
index 1ec95755b..13666c173 100644
--- a/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/AsExpression.cs
+++ b/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/AsExpression.cs
@@ -23,8 +23,6 @@
 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
-using System.Collections.Generic;
-
 namespace ICSharpCode.Decompiler.CSharp.Syntax
 {
 	/// <summary>
@@ -58,12 +56,6 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 			AddChild(expression, Roles.Expression);
 			AddChild(type, Roles.Type);
 		}
-
-		protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
-		{
-			AsExpression o = other as AsExpression;
-			return o != null && this.Expression.DoMatch(o.Expression, match) && this.Type.DoMatch(o.Type, match);
-		}
 	}
 }
 
diff --git a/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/AssignmentExpression.cs b/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/AssignmentExpression.cs
index 839cafae8..56c4eba2a 100644
--- a/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/AssignmentExpression.cs
+++ b/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/AssignmentExpression.cs
@@ -25,7 +25,6 @@
 // THE SOFTWARE.
 
 using System;
-using System.Collections.Generic;
 using System.Linq.Expressions;
 
 namespace ICSharpCode.Decompiler.CSharp.Syntax
@@ -89,13 +88,6 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 			set { SetChildByRole(RightRole, value); }
 		}
 
-		protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
-		{
-			AssignmentExpression o = other as AssignmentExpression;
-			return o != null && (this.Operator == AssignmentOperatorType.Any || this.Operator == o.Operator)
-				&& this.Left.DoMatch(o.Left, match) && this.Right.DoMatch(o.Right, match);
-		}
-
 		public static TokenRole GetOperatorRole(AssignmentOperatorType op)
 		{
 			switch (op)
diff --git a/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/BaseReferenceExpression.cs b/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/BaseReferenceExpression.cs
index 82cf0fc0a..ace2c05d9 100644
--- a/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/BaseReferenceExpression.cs
+++ b/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/BaseReferenceExpression.cs
@@ -24,7 +24,6 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-
 namespace ICSharpCode.Decompiler.CSharp.Syntax
 {
 	/// <summary>
@@ -48,11 +47,5 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 				return new TextLocation(Location.Line, Location.Column + "base".Length);
 			}
 		}
-
-		protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
-		{
-			BaseReferenceExpression o = other as BaseReferenceExpression;
-			return o != null;
-		}
 	}
 }
diff --git a/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/BinaryOperatorExpression.cs b/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/BinaryOperatorExpression.cs
index 2c98080f1..af73340e4 100644
--- a/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/BinaryOperatorExpression.cs
+++ b/ICSharpCode.Decompiler/CSharp/Syntax/Expressions/BinaryOperatorExpression.cs
@@ -91,13 +91,6 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 			set { SetChildByRole(RightRole, value); }
 		}
 
-		protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
-		{
-			BinaryOperatorExpression o = other as BinaryOperatorExpression;
-			return o != null && (this.Operator == BinaryOperatorType.Any || this.Operator == o.Operator)
-				&& this.Left.DoMatch(o.Left, match) && this.Right.DoMatch(o.Right, match);
-		}
-
 		public static TokenRole GetOperatorRole(BinaryOperatorType op)
 		{
 			switch (op)