skip some new specs

spec/tags/core/file/realpath_tags.txt

@@ -3,3 +3,6 @@ fails:File.realpath returns the real (absolute) pathname not containing symlinks
 fails:File.realpath uses base directory for interpreting relative pathname
 fails:File.realpath uses current directory for interpreting relative pathname
 fails:File.realpath raises a Errno::ELOOP if symlink points itself
+fails:File.realpath raises a Errno::ELOOP if the symlink points to itself
+fails:File.realpath raises Errno::ENOENT if the file is absent
+fails:File.realpath raises Errno::ENOENT if the symlink points to an absent file

spec/tags/core/regexp/match_tags.txt

@@ -7,3 +7,4 @@ fails:Regexp#match when passed a block yields the MatchData
 fails:Regexp#match when passed a block returns the block result
 fails:Regexp#~ matches against the contents of $_
 fails:Regexp#match returns a MatchData object, when argument is a Symbol
+fails:Regexp#match uses the start as a character offset

spec/tags/core/string/match_tags.txt

@@ -6,3 +6,4 @@ fails:String#match converts string patterns to regexps without escaping
 fails:String#match sets $~ to MatchData of match or nil when there is none
 fails:String#match when passed a block yields the MatchData
 fails:String#match when passed a block returns the block result
+fails:String#match uses the start as a character offset

spec/tags/core/symbol/to_proc_tags.txt

@@ -1 +1,2 @@
 fails:Symbol#to_proc yields to the passed block when calling #call on the Proc
+fails:Symbol#to_proc passes along the block passed to Proc#call