Skip file test on ARM that leaves large file in temp directory

tests/standalone/standalone.status

 # Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 # WARNING:
 # Tests using the multitest feature where failure is expected should *also* be
 # listed in tests/lib/analyzer/analyze_tests.status without the "standalone"
 # prefix.
 
 package/invalid_uri_test: Fail, OK # CompileTimeErrors intentionally
@@ skipping 109 matching lines @@
 precompilation_dart2js_test: Pass, Slow
 
 [ ($runtime == vm || $runtime == dart_product) && $arch == ia32 ]
 precompilation_test: SkipByDesign # Not expected to pass on ia32.
 precompilation_dart2js_test: SkipByDesign # Not expected to pass on ia32.
 
 [ ($runtime == vm || $runtime == dart_product) && ($arch == mips || $arch == arm || $arch == arm64) ]
 precompilation_test: SkipSlow
 precompilation_dart2js_test: SkipSlow
 
+[ ($runtime == vm || $runtime == dart_product) && ($arch == arm || $arch == arm64) ]
+io/file_stream_test: Skip # Issue 26109
+
 [ $compiler == dart2js && $jscl ]
 assert_test: RuntimeError, OK # Assumes unspecified fields on the AssertionError.
 deoptimization_test: RuntimeError, OK # Requires bigint.
 out_of_memory_test: RuntimeError, OK # d8 handles much larger arrays than Dart VM.
 io/arguments_test: CompileTimeError, OK # Cannot pass arguments to d8.
 
 [ $compiler == dart2js && $runtime == none ]
 io/arguments_test: Fail # DartOptions not supported by dart2js, and issue 14200.
 medium_integer_test: Pass # The test only fails at runtime, not at compilation.
 oom_error_stacktrace_test: Pass # The test only fails at runtime.
@@ skipping 153 matching lines @@
 # Following tests are skipped on dart_product as package mapping is not supported.
 [ $runtime == dart_product ]
 package/scenarios/packages_file_strange_formatting/mixed_line_ends_test: Skip
 package/scenarios/packages_file_strange_formatting/empty_lines_test: Skip
 package/scenarios/invalid/invalid_utf8_test: Skip
 package/scenarios/invalid/same_package_twice_test: Skip
 package/scenarios/invalid/non_existent_packages_file_test: Skip
 package/scenarios/empty_packages_file/empty_packages_file_noimports_test: Skip
 package/scenarios/packages_option_only/packages_option_only_noimports_test: Skip
 package/scenarios/packages_option_only/packages_option_only_test: Skip