[test] Mark slow tests

Mark slow tests discovered by manual audit of reported durations.

Slow tests will run first, which will lead to higher test runner throughput.

Also some tests have flaky timeouts occasionally.

BUG=chromium:601468

Change-Id: If9aeb5422e79ff25b867b01c50386a5fdebeb494
Reviewed-on: https://chromium-review.googlesource.com/455736Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43819}

test/cctest/cctest.status

@@ -72,8 +72,7 @@
   'test-ast-types/*': [PASS, NO_VARIANTS],
 
   # This tests API threading, no point in running several variants.
-  # They are also slow in debug mode.
-  'test-api/Threading*': [PASS, NO_VARIANTS, ['mode == debug', SLOW]],
+  'test-api/Threading*': [PASS, SLOW, NO_VARIANTS],
 
   # BUG(2999). The cpu profiler tests are notoriously flaky.
   'test-cpu-profiler/CpuProfileDeepStack': [SKIP],

test/debugger/debugger.status

@@ -21,11 +21,13 @@
   # parameter value
   'debug/es6/debug-scope-default-param-with-eval': [FAIL],
 
-  # Slow test
+  # Slow tests
   'debug/debug-scopes': [PASS, SLOW],
+  'debug/debug-stepout-scope-part*': [PASS, SLOW],
+  'debug/ignition/debug-step-prefix-bytecodes': [PASS, SLOW],
 
   # Too slow in debug mode and on slow platforms.
-  'regress/regress-2318': [PASS, ['mode == debug or (arch != ia32 and arch != x64) or asan == True or msan == True', SKIP]],
+  'regress/regress-2318': [PASS, SLOW, ['mode == debug or (arch != ia32 and arch != x64) or asan == True or msan == True', SKIP]],
 }],  # ALWAYS
 
 ##############################################################################

test/mjsunit/mjsunit.status

@@ -84,7 +84,7 @@
 
   # Issue 488: this test sometimes times out.
   # TODO(arm): This seems to flush out a bug on arm with simulator.
-  'array-constructor': [PASS, TIMEOUT, ['arch == arm and simulator == True', SKIP]],
+  'array-constructor': [PASS, SLOW, ['arch == arm and simulator == True', SKIP]],
 
   # Issue 4413: this test sometimes times out with TSAN because we trigger
   # the slow path in C++ with holey arrays in Function.prototype.apply.
@@ -146,11 +146,18 @@
 
   # Slow tests.
   'copy-on-write-assert': [PASS, SLOW],
+  'es6/tail-call-megatest*': [PASS, SLOW, FAST_VARIANTS, ['tsan', SKIP]],
+  'es6/typedarray-construct-offset-not-smi': [PASS, SLOW],
+  'harmony/regexp-property-script-extensions': [PASS, SLOW],
   'numops-fuzz-part*': [PASS, ['mode == debug', SLOW]],
   'readonly': [PASS, SLOW],
+  'regress/regress-1122': [PASS, SLOW],
+  'regress/regress-605470': [PASS, SLOW],
+  'regress/regress-655573': [PASS, SLOW],
   'regress/regress-1200351': [PASS, SLOW],
   'regress/regress-crbug-474297': [PASS, ['gc_stress == False', SKIP]],
-  'es6/tail-call-megatest*': [PASS, SLOW, FAST_VARIANTS, ['tsan', SKIP]],
+  'wasm/embenchen/*': [PASS, SLOW],
+  'wasm/unreachable-validation': [PASS, SLOW],
 
   # case-insensitive unicode regexp relies on case mapping provided by ICU.
   'es6/unicode-regexp-ignore-case': [PASS, ['no_i18n == True', FAIL]],
@@ -299,7 +306,6 @@
 
   # Slow tests.
   'array-concat': [PASS, SLOW],
-  'array-constructor': [PASS, SLOW],
   'array-indexing': [PASS, SLOW],
   'array-reduce': [PASS, SLOW],
   'array-sort': [PASS, SLOW],
@@ -312,8 +318,8 @@
   'json2': [PASS, SLOW],
   'math-floor-of-div-nosudiv': [PASS, SLOW],
   'math-floor-of-div': [PASS, SLOW],
+  'messages': [PASS, SLOW],
   'packed-elements': [PASS, SLOW],
-  'regress/regress-1122': [PASS, SLOW],
   'regress/regress-2185-2': [PASS, SLOW],
   'regress/regress-2185': [PASS, SLOW],
   'regress/regress-2790': [PASS, SLOW],

test/test262/test262.status

@@ -630,6 +630,13 @@
   'language/literals/regexp/S7.8.5_A2.4_T2': [SKIP],
   'built-ins/Array/prototype/slice/S15.4.4.10_A3_T1': [SKIP],
   'built-ins/Array/prototype/slice/S15.4.4.10_A3_T2': [SKIP],
+
+  ############################ SLOW TESTS #############################
+
+  'annexB/built-ins/RegExp/RegExp-leading-escape-BMP': [PASS, SLOW],
+  'annexB/built-ins/RegExp/RegExp-trailing-escape-BMP': [PASS, SLOW],
+  'language/comments/S7.4_A5': [PASS, SLOW],
+  'language/comments/S7.4_A6': [PASS, SLOW],
 }],  # ALWAYS
 
 ['no_i18n == True', {