Baseline handling of leading/trailing spaces in to_count/to_int.

Currently `to_count` reports an error for trailing spaces (but not for
leading ones) while `to_int` silently accepts them. This patch adds
baselines capture the current behavior.

testing/btest/Baseline/bifs.to_count/err

@@ -1,4 +1,5 @@
 ### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
 error in <...>/to_count.zeek, line 8: bad conversion to count (int_to_count(a) and -2)
 error in <...>/to_count.zeek, line 20: bad conversion to count (to_count() and )
-error in <...>/to_count.zeek, line 22: bad conversion to count (to_count(not a count) and not a count)
+error in <...>/to_count.zeek, line 24: bad conversion to count (to_count(206 ) and 206 )
+error in <...>/to_count.zeek, line 25: bad conversion to count (to_count(not a count) and not a count)

testing/btest/Baseline/bifs.to_count/out

@@ -6,6 +6,8 @@
 7
 0
 18446744073709551611
+205
+0
 0
 123
 9223372036854775808 and 9223372036854775808 are the same

testing/btest/Baseline/bifs.to_int/out

@@ -3,6 +3,8 @@
 -1
 4294967296
 0
+205
+206
 3
 4
 -3

testing/btest/bifs/to_count.zeek

@@ -19,6 +19,9 @@ event zeek_init()
 	print to_count("7");
 	print to_count("");
 	print to_count("-5");
+	# We automatically trim leading, but not trailing whitespace.
+	print to_count(" 205"); # Okay.
+	print to_count("206 "); # Error.
 	print to_count("not a count");
 
 	local e: port = 123/tcp;

testing/btest/bifs/to_int.zeek

@@ -8,6 +8,9 @@ event zeek_init()
 	print to_int("-1");
 	print to_int("4294967296");
 	print to_int("not an int");
+	# We automatically trim leading, but not trailing whitespace.
+	print to_int(" 205"); # Okay.
+	print to_int("206 "); # Error.
 
 	local a: double = 3.14;
 	print double_to_int(a);