Removed unnecessary errorWithStack helper

src/core/Deprecator.js

@@ -65,7 +65,7 @@ getJasmineRequireObj().Deprecator = function(j$) {
 
   Deprecator.prototype.stackTrace_ = function() {
     const formatter = new j$.ExceptionFormatter();
-    return formatter.stack(j$.util.errorWithStack()).replace(/^Error\n/m, '');
+    return formatter.stack(new Error()).replace(/^Error\n/m, '');
   };
 
   Deprecator.prototype.report_ = function(runnable, deprecation, options) {

src/core/Expectation.js

@@ -148,7 +148,7 @@ getJasmineRequireObj().Expectation = function(j$) {
     return function() {
       // Capture the call stack here, before we go async, so that it will contain
       // frames that are relevant to the user instead of just parts of Jasmine.
-      const errorForStack = j$.util.errorWithStack();
+      const errorForStack = new Error();
 
       return this.expector
         .compare(name, matcherFactory, arguments)

src/core/util.js

@@ -48,16 +48,9 @@ getJasmineRequireObj().util = function(j$) {
     return Object.prototype.hasOwnProperty.call(obj, key);
   };
 
-  util.errorWithStack = function errorWithStack() {
-    // Don't throw and catch. That makes it harder for users to debug their
-    // code with exception breakpoints, and it's unnecessary since all
-    // supported environments populate new Error().stack
-    return new Error();
-  };
-
   function callerFile() {
-    const trace = new j$.StackTrace(util.errorWithStack());
-    return trace.frames[2].file;
+    const trace = new j$.StackTrace(new Error());
+    return trace.frames[1].file;
   }
 
   util.jasmineFile = (function() {