Fixed de-duplication of exception messages containing blank lines on Node and Chrome

This is particularly helpful when reporting testing-library errors, which
have messages that contain blank lines and can be hundreds or even thousands
of lines long.

src/core/StackTrace.js

@@ -1,8 +1,6 @@
 getJasmineRequireObj().StackTrace = function(j$) {
   function StackTrace(error) {
-    let lines = error.stack.split('\n').filter(function(line) {
-      return line !== '';
-    });
+    let lines = error.stack.split('\n');
 
     const extractResult = extractMessage(error.message, lines);
 
@@ -11,6 +9,10 @@ getJasmineRequireObj().StackTrace = function(j$) {
       lines = extractResult.remainder;
     }
 
+    lines = lines.filter(function(line) {
+      return line !== '';
+    });
+
     const parseResult = tryParseFrames(lines);
     this.frames = parseResult.frames;
     this.style = parseResult.style;