Exclude failing new 2.7.3 MRI tests

Author: eregon

test/mri/excludes/TestArray.rb

@@ -39,3 +39,4 @@
 exclude :test_sort_with_replace, "needs investigation"
 exclude :test_0_literal, "needs investigation"
 exclude :test_ASET, "needs investigation"
+exclude :test_flatten_recursive, "needs investigation"

test/mri/excludes/TestClass.rb

@@ -14,3 +14,4 @@
 exclude :test_invalid_retry_from_class_definition, "needs investigation"
 exclude :test_visibility_inside_method, "needs investigation"
 exclude :test_constant_access_from_method_in_cloned_class, "needs investigation"
+exclude :test_clone_when_method_exists_on_singleton_class_of_singleton_class, "needs investigation"

test/mri/excludes/TestKernel.rb

@@ -0,0 +1 @@
+exclude :test_gem_failing_inside_require_doesnt_cause_double_exceptions, "needs investigation"

test/mri/excludes/TestPathname.rb

@@ -41,3 +41,4 @@
 exclude :test_glob, "needs investigation"
 exclude :test_relative_path_from_mock, "needs investigation"
 exclude :test_readlines_opts, "needs investigation"
+exclude :test_each_line_opts, "needs investigation"

test/mri/excludes/TestSyntax.rb

@@ -46,3 +46,4 @@
 exclude :test_warning_literal_in_flip_flop, "needs investigation"
 exclude :test_array_kwsplat_hash, "needs investigation"
 exclude :test_return_toplevel_with_argument, "needs investigation"
+exclude :test_argument_forwarding_with_leading_arguments, "needs investigation"

test/mri/excludes/TestTime.rb

@@ -24,3 +24,4 @@
 exclude :test_floor, "needs investigation"
 exclude :test_marshal_distant_future, "needs investigation"
 exclude :test_marshal_distant_past, "needs investigation"
+exclude :test_getlocal_utc_offset, "needs investigation"