Remove unnecessary List creation

pkg/analyzer/lib/src/generated/element.dart

Index: pkg/analyzer/lib/src/generated/element.dart
diff --git a/pkg/analyzer/lib/src/generated/element.dart b/pkg/analyzer/lib/src/generated/element.dart
index 4270383b130fcde146d301ae6ebab5d162171720..3161e1adc2ba4c9107a447429417095e1d131e75 100644
--- a/pkg/analyzer/lib/src/generated/element.dart
+++ b/pkg/analyzer/lib/src/generated/element.dart
@@ -1302,7 +1302,7 @@ class ClassElementImpl extends ElementImpl implements ClassElement {
   List<InterfaceType> get allSupertypes {
     List<InterfaceType> list = new List<InterfaceType>();
     _collectAllSupertypes(list);
-    return new List.from(list);
+    return list;
   }
 
   @override
@@ -3775,7 +3775,7 @@ class ElementLocationImpl implements ElementLocation {
       components.insert(0, (ancestor as ElementImpl).identifier);
       ancestor = ancestor.enclosingElement;
     }
-    this._components = new List.from(components);
+    this._components = components;
   }
 
   /**
@@ -3875,7 +3875,7 @@ class ElementLocationImpl implements ElementLocation {
       }
     }
     components.add(builder.toString());
-    return new List.from(components);
+    return components;
   }
 
   /**
@@ -5430,7 +5430,7 @@ class FunctionTypeImpl extends TypeImpl implements FunctionType {
         types.add(type);
       }
     }
-    return new List.from(types);
+    return types;
   }
 
   @override
@@ -5450,7 +5450,7 @@ class FunctionTypeImpl extends TypeImpl implements FunctionType {
         types.add(type);
       }
     }
-    return new List.from(types);
+    return types;
   }
 
   @override
@@ -7922,7 +7922,7 @@ class LibraryElementImpl extends ElementImpl implements LibraryElement {
         importList.add(_imports[i]);
       }
     }
-    return new List.from(importList);
+    return importList;
   }
 
   @override
@@ -11322,7 +11322,7 @@ class UnionTypeImpl extends TypeImpl implements UnionType {
     for (DartType t in _types) {
       out.add(t.substitute2(argumentTypes, parameterTypes));
     }
-    return union(new List.from(out));
+    return union(out);
   }
 
   @override