Reapply "Use CodeSourceMap for stack traces (still JIT only)."

runtime/tests/vm/dart/inline_stack_frame_test.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // VMOptions=--optimization_counter_threshold=10 --no-background-compilation
 
-import "package:expect/expect.dart";
-
 // This test tries to verify that we produce the correct stack trace when
 // throwing exceptions even when functions are inlined.
 // The test invokes a bunch of functions and then does a throw. There is a
 // catch at the outer function which uses the stack trace produced to return
 // a string. The test then verifies that the stack trace contains each
 // method in the invocation chain. The test is run during warmup to ensure
 // unoptimized code produces the correct result and is then run
 // in a loop to ensure optimization kicks in and some inlining is done.
 // Note: it appears that functions which have a throw are not inlined (func4)
 //       and functions that have try/catch in them are not optimized (func1).
 //       func2 is not inlined as func1 has not been optimized.
 
 class Test {
   String func1(var k) {
     try {
       for (var i = 0; i <= 50; i++) {
         func2(i * k);
       }
       return "";
     } catch (e, stacktrace) {
-      var result = e + stacktrace.toString();
+      var result = e + "\n" + stacktrace.toString();
       return result;
     }
   }
   int func2(var i) {
     var result = 0;
     for (var k = 0; k <= 10; k++) {
       result += func3(i + k);
     }
     return result;
   }
@@ skipping 10 matching lines @@
       result += func5(i + j);
     }
     return result;
   }
   int func5(var i) {
     if (i >= 520) throw "show me inlined functions";
     return i;
   }
 }
 
+expectHasSubstring(String string, String substring) {
+  if (!string.contains(substring)) {
+    var sb = new StringBuffer();
+    sb.writeln("Expect string:");
+    sb.writeln(string);
+    sb.writeln("To have substring:");
+    sb.writeln(substring);
+    throw new Exception(sb.toString());
+  }
+}
+
 main() {
   var x = new Test();
   var result = x.func1(100000);
-  Expect.isTrue(result.contains("show me inlined functions"));
-  Expect.isTrue(result.contains("Test.func1"));
-  Expect.isTrue(result.contains("Test.func2"));
-  Expect.isTrue(result.contains("Test.func3"));
-  Expect.isTrue(result.contains("Test.func4"));
-  Expect.isTrue(result.contains("Test.func"));
+  expectHasSubstring(result, "show me inlined functions");
+  expectHasSubstring(result, "Test.func1");
+  expectHasSubstring(result, "Test.func2");
+  expectHasSubstring(result, "Test.func3");
+  expectHasSubstring(result, "Test.func4");
+  expectHasSubstring(result, "Test.func5");
   for (var i = 0; i <= 10; i++) {
     result = x.func1(i);
   }
-  Expect.isTrue(result.contains("show me inlined functions"));
-  Expect.isTrue(result.contains("Test.func1"));
-  Expect.isTrue(result.contains("Test.func2"));
-  Expect.isTrue(result.contains("Test.func3"));
-  Expect.isTrue(result.contains("Test.func4"));
-  Expect.isTrue(result.contains("Test.func5"));
+  expectHasSubstring(result, "show me inlined functions");
+  expectHasSubstring(result, "Test.func1");
+  expectHasSubstring(result, "Test.func2");
+  expectHasSubstring(result, "Test.func3");
+  expectHasSubstring(result, "Test.func4");
+  expectHasSubstring(result, "Test.func5");
 }