Remove redundant ModelElement.filePath implementations (#3751)

Author: srawlins

lib/src/generator/templates.runtime_renderers.dart

@@ -4752,28 +4752,6 @@ class _Renderer_Extension extends RendererBase<Extension> {
                         parent: r);
                   },
                 ),
-                'filePath': Property(
-                  getValue: (CT_ c) => c.filePath,
-                  renderVariable:
-                      (CT_ c, Property<CT_> self, List<String> remainingNames) {
-                    if (remainingNames.isEmpty) {
-                      return self.getValue(c).toString();
-                    }
-                    var name = remainingNames.first;
-                    var nextProperty =
-                        _Renderer_String.propertyMap().getValue(name);
-                    return nextProperty.renderVariable(
-                        self.getValue(c) as String,
-                        nextProperty,
-                        [...remainingNames.skip(1)]);
-                  },
-                  isNullValue: (CT_ c) => false,
-                  renderValue: (CT_ c, RendererBase<CT_> r,
-                      List<MustachioNode> ast, StringSink sink) {
-                    _render_String(c.filePath, ast, r.template, sink,
-                        parent: r);
-                  },
-                ),
                 'kind': Property(
                   getValue: (CT_ c) => c.kind,
                   renderVariable: (CT_ c, Property<CT_> self,
@@ -5200,28 +5178,6 @@ class _Renderer_ExtensionType extends RendererBase<ExtensionType> {
                         parent: r);
                   },
                 ),
-                'filePath': Property(
-                  getValue: (CT_ c) => c.filePath,
-                  renderVariable:
-                      (CT_ c, Property<CT_> self, List<String> remainingNames) {
-                    if (remainingNames.isEmpty) {
-                      return self.getValue(c).toString();
-                    }
-                    var name = remainingNames.first;
-                    var nextProperty =
-                        _Renderer_String.propertyMap().getValue(name);
-                    return nextProperty.renderVariable(
-                        self.getValue(c) as String,
-                        nextProperty,
-                        [...remainingNames.skip(1)]);
-                  },
-                  isNullValue: (CT_ c) => false,
-                  renderValue: (CT_ c, RendererBase<CT_> r,
-                      List<MustachioNode> ast, StringSink sink) {
-                    _render_String(c.filePath, ast, r.template, sink,
-                        parent: r);
-                  },
-                ),
                 'inheritanceChain': Property(
                   getValue: (CT_ c) => c.inheritanceChain,
                   renderVariable: (CT_ c, Property<CT_> self,

lib/src/model/extension.dart

@@ -92,9 +92,6 @@ class Extension extends Container {
     ...typeParameters,
   ];
 
-  @override
-  String get filePath => '${library.dirName}/$fileName';
-
   @override
   String get sidebarPath => '${library.dirName}/$name-extension-sidebar.html';
 

lib/src/model/extension_type.dart

@@ -65,9 +65,6 @@ class ExtensionType extends InheritingContainer with Constructable {
     ...interfaceElements.expandInheritanceChain,
   ];
 
-  @override
-  String get filePath => '${library.dirName}/$fileName';
-
   @override
   String get fileName => '$name-extension-type.html';
 

lib/src/model/library.dart

@@ -184,12 +184,12 @@ class Library extends ModelElement
   ModelElement? get enclosingElement => null;
 
   @override
-  String get filePath => '${library.dirName}/$fileName';
+  String get filePath => '$dirName/$fileName';
 
   @override
   String get fileName => '$dirName-library.html';
 
-  String get sidebarPath => '${library.dirName}/$dirName-library-sidebar.html';
+  String get sidebarPath => '$dirName/$dirName-library-sidebar.html';
 
   /// The library template manually includes 'packages' in the left/above
   /// sidebar.