Fix forms designer not using spaces in generated code when text editor is configured to convert tabs to spaces.

src/AddIns/DisplayBindings/FormsDesigner/Project/Src/DesignerGenerator/AbstractDesignerGenerator.cs

@@ -262,7 +262,8 @@ namespace ICSharpCode.FormsDesigner
 			
 			// generate file and get initialize components string
 			StringWriter writer = new StringWriter();
-			CodeDOMGenerator domGenerator = new CodeDOMGenerator(this.CodeDomProvider, tabs + '\t');
+			string indentation = tabs + EditorControlService.GlobalOptions.IndentationString;
+			CodeDOMGenerator domGenerator = new CodeDOMGenerator(this.CodeDomProvider, indentation);
 			domGenerator.ConvertContentDefinition(initializeComponent, writer);
 			
 			string statements = writer.ToString();

src/AddIns/DisplayBindings/FormsDesigner/Project/Src/DesignerGenerator/CSharpDesignerGenerator.cs

@@ -35,7 +35,8 @@ namespace ICSharpCode.FormsDesigner
 					body = "// TODO: Implement " + eventMethodName;
 				}
 			}
-			b.AppendLine(indentation + "\t" + body);
+			string singleIndent = EditorControlService.GlobalOptions.IndentationString;
+			b.AppendLine(indentation + singleIndent + body);
 			b.AppendLine(indentation + "}");
 			return b.ToString();
 		}

src/AddIns/DisplayBindings/FormsDesigner/Project/Src/DesignerGenerator/VBNetDesignerGenerator.cs

@@ -53,7 +53,8 @@ namespace ICSharpCode.FormsDesigner
 					body = "' TODO: Implement " + eventMethodName;
 				}
 			}
-			b.AppendLine(indentation + "\t" + body);
+			string singleIndent = EditorControlService.GlobalOptions.IndentationString;
+			b.AppendLine(indentation + singleIndent + body);
 			b.AppendLine(indentation + "End Sub");
 			return b.ToString();
 		}