Add tags for failing language specs

spec/tags/language/block_tags.txt

@@ -1 +1,4 @@
 fails:A block yielded a single Array when non-symbol keys are in a keyword arguments Hash raises an ArgumentError
+fails:A block yielded a single Array calls #to_hash on the argument but ignores result when optional argument and keyword argument accepted
+fails:Post-args with optional args with a circular argument reference raises a SyntaxError if using an existing local with the same name as the argument
+fails:Post-args with optional args with a circular argument reference raises a SyntaxError if there is an existing method with the same name as the argument

spec/tags/language/comment_tags.txt

@@ -0,0 +1 @@
+fails:The comment can be placed between fluent dot now

spec/tags/language/def_tags.txt

@@ -1,2 +1,3 @@
 fails:An instance method raises FrozenError with the correct class name
 fails:A singleton method definition raises FrozenError with the correct class name
+fails:An instance method with a default argument raises a syntaxError an existing method with the same name as the local variable

spec/tags/language/delegation_tags.txt

@@ -0,0 +1,3 @@
+fails:delegation with def(...) delegates rest and kwargs
+fails:delegation with def(...) delegates block
+fails:delegation with def(...) parses as open endless Range when brackets are omitted

spec/tags/language/hash_tags.txt

@@ -0,0 +1 @@
+fails:Hash literal allows splatted elements keys that are not symbols

spec/tags/language/lambda_tags.txt

@@ -0,0 +1,3 @@
+fails:A lambda literal -> () { } assigns variables from parameters with circular optional argument reference raises a SyntaxError if using an existing local with the same name as the argument
+fails:A lambda literal -> () { } assigns variables from parameters with circular optional argument reference raises a SyntaxError if there is an existing method with the same name as the argument
+fails:A lambda expression 'lambda { ... }' with an implicit block raises ArgumentError

spec/tags/language/method_tags.txt

@@ -11,3 +11,9 @@ fails:A method assigns local variables from method parameters for definition 'de
 fails:A method assigns local variables from method parameters for definition 'def m(*, **k) k end'
 fails:A method assigns local variables from method parameters for definition 'def m(a = nil, **k) [a, k] end'
 fails:A method assigns local variables from method parameters for definition 'def m(*a, **k) [a, k] end'
+fails:A method assigns local variables from method parameters for definition 'def m(**k); k end;'
+fails:A method assigns local variables from method parameters for definition 'def m(a:, **) a end'
+fails:A method assigns local variables from method parameters for definition 'def m(a:, **k) [a, k] end'
+fails:A method assigns local variables from method parameters for definition 'def m(a, **nil); a end;'
+fails:A method when passing an empty keyword splat to a method that does not accept keywords for definition 'def m(*a); a; end'
+fails:A method when passing an empty keyword splat to a method that does not accept keywords for definition 'def m(a); a; end'

spec/tags/language/numbered_parameters_tags.txt

@@ -0,0 +1,7 @@
+fails:Numbered parameters provides default parameters _1, _2, ... in a block
+fails:Numbered parameters assigns nil to not passed parameters
+fails:Numbered parameters supports variables _1-_9 only for the first 9 passed parameters
+fails:Numbered parameters can not be used in both outer and nested blocks at the same time
+fails:Numbered parameters warns when numbered parameter is overwritten with local variable
+fails:Numbered parameters raises SyntaxError when block parameters are specified explicitly
+fails:Numbered parameters affects block arity

spec/tags/language/predefined_tags.txt

@@ -6,3 +6,5 @@ slow:The predefined global constant ARGV contains Strings encoded in locale Enco
 slow:Global variable $0 is the path given as the main script and the same as __FILE__
 slow:Global variable $? is thread-local
 slow:Global variable $0 actually sets the program name
+fails:Predefined global $, warns if assigned non-nil
+fails:Predefined global $; warns if assigned non-nil

spec/tags/language/range_tags.txt

@@ -0,0 +1 @@
+fails:Literal Ranges creates beginless ranges

spec/tags/language/rescue_tags.txt

@@ -1,2 +1,3 @@
 fails:The rescue keyword allows 'rescue' in method arguments
 fails:The rescue keyword raises SyntaxError when else is used without rescue and ensure
+fails:The rescue keyword inline form rescues with multiple assignment

spec/tags/language/return_tags.txt

@@ -10,3 +10,4 @@ fails:The return keyword at top level within a block within a class is allowed
 fails:The return keyword at top level within a class raises a SyntaxError
 fails(escapes the interpreter):The return keyword at top level within a block within a class is not allowed
 slow:The return keyword at top level return with argument warns but does not affect exit status
+fails:The return keyword at top level return with argument warns but does not affect exit status

spec/tags/language/safe_tags.txt

@@ -15,3 +15,5 @@ fails:The $SAFE variable can be manually lowered
 fails:The $SAFE variable is not Proc local
 fails:The $SAFE variable is not lambda local
 fails:The $SAFE variable is global like regular global variables
+fails:The $SAFE variable warn when access
+fails:The $SAFE variable warn when set

spec/tags/language/send_tags.txt

@@ -0,0 +1 @@
+fails:Invoking a private getter method permits self as a receiver

spec/tags/language/singleton_class_tags.txt

@@ -0,0 +1 @@
+fails:Defining yield in singleton class emits a deprecation warning