Improve LayoutTest output for Errors

LayoutTests/crypto/digest-failures-expected.txt

Index: LayoutTests/crypto/digest-failures-expected.txt
diff --git a/LayoutTests/crypto/digest-failures-expected.txt b/LayoutTests/crypto/digest-failures-expected.txt
index 4d497715f818b80bf96a24ee82c676c30c0ec5e2..d3ccbe5c23084f0c8480029ef4c305c6713986b6 100644
--- a/LayoutTests/crypto/digest-failures-expected.txt
+++ b/LayoutTests/crypto/digest-failures-expected.txt
@@ -3,11 +3,23 @@ Tests incorrect calls to crypto.subtle.digest()
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
 
 
+
+digest() without data argument...
 error is: TypeError: Failed to execute 'digest' on 'SubtleCrypto': 2 arguments required, but only 1 present.
+
+digest() with data argument that is null...
 error is: TypeError: Failed to execute 'digest' on 'SubtleCrypto': The provided value is not of type '(ArrayBuffer or ArrayBufferView)'
+
+digest() with data argument that is an integer...
 error is: TypeError: Failed to execute 'digest' on 'SubtleCrypto': The provided value is not of type '(ArrayBuffer or ArrayBufferView)'
+
+digest() with algorithm as null...
 error is: TypeError: Algorithm: Not an object
+
+digest() with invalid agorithm that is sha...
 error is: NotSupportedError: Algorithm: Unrecognized name
+
+digest() without algorithm name...
 error is: TypeError: Algorithm: name: Missing or not a string
 PASS successfullyParsed is true