Improve LayoutTest output for Errors

LayoutTests/crypto/rsa-ssa-generateKey-parseAlgorithm-failures-expected.txt

Index: LayoutTests/crypto/rsa-ssa-generateKey-parseAlgorithm-failures-expected.txt
diff --git a/LayoutTests/crypto/rsa-ssa-generateKey-parseAlgorithm-failures-expected.txt b/LayoutTests/crypto/rsa-ssa-generateKey-parseAlgorithm-failures-expected.txt
index c1bc9add9e45bd06d3334b6aa1b26e34c300a93d..b890b3fab1cfa4b992d6486223660ece26b46eee 100644
--- a/LayoutTests/crypto/rsa-ssa-generateKey-parseAlgorithm-failures-expected.txt
+++ b/LayoutTests/crypto/rsa-ssa-generateKey-parseAlgorithm-failures-expected.txt
@@ -3,15 +3,35 @@ Tests generateKey() with bad RSASSA-PKCS1-v1_5 parameters.
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
 
 
+
+generateKey() with negative modulusLength...
 error is: TypeError: RsaHashedKeyGenParams: modulusLength: Outside of numeric range
+
+generateKey() with modulusLength that is NaN...
 error is: TypeError: RsaHashedKeyGenParams: modulusLength: Is not a number
+
+generateKey() without modulusLength...
 error is: TypeError: RsaHashedKeyGenParams: modulusLength: Missing required property
+
+generateKey() without publicExponent...
 error is: TypeError: RsaHashedKeyGenParams: publicExponent: Missing or not a Uint8Array
+
+generateKey() with publicExponent that is an integer...
 error is: TypeError: RsaHashedKeyGenParams: publicExponent: Missing or not a Uint8Array
+
+generateKey() with publicExponent that is null...
 error is: TypeError: RsaHashedKeyGenParams: publicExponent: Missing or not a Uint8Array
+
+generateKey() with modulusLength that is 10...
 error is: NotSupportedError: The modulus length must be a multiple of 8 bits and >= 256 and <= 16384
+
+generateKey() with publicExponent that is of 0 bytes...
 error is: DataError: The "publicExponent" must be either 3 or 65537
+
+generateKey() with invalid hash name...
 error is: NotSupportedError: RsaHashedKeyGenParams: hash: Algorithm: Unrecognized name
+
+generateKey() without hash name...
 error is: TypeError: RsaHashedKeyGenParams: hash: Missing or not an AlgorithmIdentifier
 PASS successfullyParsed is true