[Truffle] Another round of specs to tag on Windows.

Author: nirvdrum

spec/truffle/tags/core/kernel/eval_tags.txt

@@ -9,4 +9,5 @@ fails:Kernel#eval returns from the scope calling #eval when evaluating 'return'
 fails:Kernel#eval unwinds through a Proc-style closure and returns from a lambda-style closure in the closure chain
 slow:Kernel#eval raises a LocalJumpError if there is no lambda-style closure in the chain
 slow:Kernel#eval does not share locals across eval scopes
-
+fails(windows bug):Kernel#eval does not share locals across eval scopes
+fails(windows bug):Kernel#eval raises a LocalJumpError if there is no lambda-style closure in the chain

spec/truffle/tags/core/kernel/fork_tags.txt

@@ -5,3 +5,7 @@ fails:Kernel#fork marks threads from the parent as killed
 fails:Kernel.fork returns nil for the child process
 fails:Kernel.fork runs a block in a child process
 fails:Kernel.fork marks threads from the parent as killed
+fails(windows):Kernel#fork returns false from #respond_to?
+fails(windows):Kernel#fork raises a NotImplementedError when called
+fails(windows):Kernel.fork returns false from #respond_to?
+fails(windows):Kernel.fork raises a NotImplementedError when called

spec/truffle/tags/core/kernel/spawn_tags.txt

@@ -139,3 +139,5 @@ fails:Kernel.spawn when passed :chdir changes to the directory passed for :chdir
 fails:Kernel.spawn when passed :chdir calls #to_path to convert the :chdir value
 fails:Kernel#spawn with Integer option keys maps the key to a file descriptor in the child that inherits the file descriptor from the parent specified by the value
 fails:Kernel.spawn with Integer option keys maps the key to a file descriptor in the child that inherits the file descriptor from the parent specified by the value
+fails(windows):Kernel#spawn raises an ArgumentError if given :pgroup option
+fails(windows):Kernel.spawn raises an ArgumentError if given :pgroup option