Exclude new failing specs

Author: andrykonchin

spec/tags/core/kernel/require_tags.txt

@@ -5,3 +5,9 @@ slow:Kernel.require ($LOADED_FEATURES) unicode_normalize is part of core and not
 slow:Kernel#require ($LOADED_FEATURES) complex, enumerator, rational, thread, ruby2_keywords are already required
 slow:Kernel.require ($LOADED_FEATURES) complex, enumerator, rational, thread, ruby2_keywords are already required
 slow:Kernel#require complex, enumerator, rational, thread, ruby2_keywords, fiber are already required
+slow:Kernel#require complex, enumerator, fiber, rational, thread, ruby2_keywords are already required
+fails:Kernel#require complex, enumerator, fiber, rational, thread, ruby2_keywords are already required
+fails:Kernel#require (path resolution) loads c-extension file when passed absolute path without extension when no .rb is present
+fails:Kernel#require (path resolution) loads .bundle file when passed absolute path with .so
+fails:Kernel.require (path resolution) loads c-extension file when passed absolute path without extension when no .rb is present
+fails:Kernel.require (path resolution) loads .bundle file when passed absolute path with .so

spec/tags/core/module/set_temporary_name_tags.txt

@@ -1,2 +1,3 @@
 fails:Module#set_temporary_name can update the name when assigned to a constant
 fails:Module#set_temporary_name does not affect a name of a module nested into an anonymous module with a temporary name
+fails:Module#set_temporary_name also updates a name of a nested module

spec/tags/core/range/max_tags.txt

@@ -1 +1,3 @@
 fails:Range#max raises for an exclusive beginless range
+fails:Range#max raises for an exclusive beginless Integer range
+fails:Range#max raises for an exclusive beginless non Integer range

spec/tags/core/string/to_f_tags.txt

@@ -0,0 +1,3 @@
+fails:String#to_f stops if the underscore is not followed or preceded by a number
+fails:String#to_f ignores leading and trailing whitespace
+fails:String#to_f raises Encoding::CompatibilityError if String is in not ASCII-compatible encoding