Capture and print times for the isInstanceOf method

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

 library java.core;
 
 import "dart:math" as math;
 
 class JavaSystem {
   static int currentTimeMillis() {
     return (new DateTime.now()).millisecondsSinceEpoch;
   }
 
   static void arraycopy(List src, int srcPos, List dest, int destPos, int length) {
     for (int i = 0; i < length; i++) {
       dest[destPos + i] = src[srcPos + i];
     }
   }
 }
 
+Stopwatch instanceOfTimer = new Stopwatch();
+
 /**
  * Limited implementation of "o is instanceOfType", see
  * http://code.google.com/p/dart/issues/detail?id=8184
  */
 bool isInstanceOf(o, Type t) {
-  if (o == null) {
-    return false;
-  }
-  if (o.runtimeType == t) {
-    return true;
-  }
-  String oTypeName = o.runtimeType.toString();
-  String tTypeName = t.toString();
-  if (oTypeName == tTypeName) {
-    return true;
-  }
-  if (oTypeName.startsWith("List") && tTypeName == "List") {
-    return true;
-  }
-  if (tTypeName == "Map" && o is Map) {
-    return true;
-  }
-  // Dart Analysis Engine specific
-  if (oTypeName == "${tTypeName}Impl") {
-    return true;
-  }
-  if (tTypeName == "FormalParameter") {
-    return
-        oTypeName == "DefaultFormalParameter" ||
-        oTypeName == "FieldNormalParameter" ||
-        oTypeName == "FunctionTypedFormalParameter" ||
-        oTypeName == "SimpleFormalParameter";
-  }
-  if (tTypeName == "MethodElement") {
-    if (oTypeName == "MethodMember") {
+  instanceOfTimer.start();
+  try {
+    if (o == null) {
+      return false;
+    }
+    if (o.runtimeType == t) {
       return true;
     }
-  }
-  if (tTypeName == "ExecutableElement") {
-    if (oTypeName == "MethodElementImpl" ||
-        oTypeName == "FunctionElementImpl" ||
-        oTypeName == "PropertyAccessorElementImpl") {
+    String oTypeName = o.runtimeType.toString();
+    String tTypeName = t.toString();
+    if (oTypeName == tTypeName) {
       return true;
     }
-  }
-  if (tTypeName == "ParameterElement") {
-    if (oTypeName == "FieldFormalParameterElementImpl" ||
-        oTypeName == "DefaultFieldFormalParameterElementImpl" ||
-        oTypeName == "DefaultParameterElementImpl") {
+    if (oTypeName.startsWith("List") && tTypeName == "List") {
       return true;
     }
-  }
-  if (tTypeName == "VariableElement") {
-    if (oTypeName == "LocalVariableElementImpl" ||
-        oTypeName == "ConstLocalVariableElementImpl" ||
-        oTypeName == "FieldElementImpl" ||
-        oTypeName == "ConstFieldElementImpl" ||
-        oTypeName == "TopLevelVariableElementImpl" ||
-        oTypeName == "ConstTopLevelVariableElementImpl") {
+    if (tTypeName == "Map" && o is Map) {
       return true;
     }
+    // Dart Analysis Engine specific
+    if (oTypeName == "${tTypeName}Impl") {
+      return true;
+    }
+    if (tTypeName == "FormalParameter") {
+      return
+          oTypeName == "DefaultFormalParameter" ||
+          oTypeName == "FieldNormalParameter" ||
+          oTypeName == "FunctionTypedFormalParameter" ||
+          oTypeName == "SimpleFormalParameter";
+    }
+    if (tTypeName == "MethodElement") {
+      if (oTypeName == "MethodMember") {
+        return true;
+      }
+    }
+    if (tTypeName == "ExecutableElement") {
+      if (oTypeName == "MethodElementImpl" ||
+          oTypeName == "FunctionElementImpl" ||
+          oTypeName == "PropertyAccessorElementImpl") {
+        return true;
+      }
+    }
+    if (tTypeName == "ParameterElement") {
+      if (oTypeName == "FieldFormalParameterElementImpl" ||
+          oTypeName == "DefaultFieldFormalParameterElementImpl" ||
+          oTypeName == "DefaultParameterElementImpl") {
+        return true;
+      }
+    }
+    if (tTypeName == "VariableElement") {
+      if (oTypeName == "LocalVariableElementImpl" ||
+          oTypeName == "ConstLocalVariableElementImpl" ||
+          oTypeName == "FieldElementImpl" ||
+          oTypeName == "ConstFieldElementImpl" ||
+          oTypeName == "TopLevelVariableElementImpl" ||
+          oTypeName == "ConstTopLevelVariableElementImpl") {
+        return true;
+      }
+    }
+    // no
+    return false;
+  } finally {
+    instanceOfTimer.stop();
   }
-  // no
-  return false;
 }
 
 class JavaArrays {
   static bool equals(List a, List b) {
     if (identical(a, b)) {
       return true;
     }
     if (a.length != b.length) {
       return false;
     }
@@ skipping 396 matching lines @@
     if (!_matches.moveNext()) {
       return false;
     }
     _match = _matches.current;
     return true;
   }
   String group(int i) => _match[i];
   int start() => _match.start;
   int end() => _match.end;
 }