Fix conversion to float32, typing issue, split apart asm-wasm tests.

test/mjsunit/mjsunit.status

 # Copyright 2012 the V8 project authors. All rights reserved.
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 # modification, are permitted provided that the following conditions are
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@@ skipping 260 matching lines @@
   'debug-scopes': [PASS, SLOW],
   'es7/object-observe': [PASS, ['mode == debug', SLOW]],
   'numops-fuzz-part*': [PASS, ['mode == debug', SLOW]],
   'readonly': [PASS, SLOW],
   'regress/regress-1200351': [PASS, ['mode == debug', SLOW]],
   'regress/regress-crbug-474297': [PASS, ['mode == debug', SLOW]],
 
   # TODO(titzer): correct WASM adapter frame alignment on arm64
   'wasm/*': [PASS, ['arch == arm64', SKIP]],
   'wasm/asm-wasm': [PASS, ['arch == arm or arch == arm64', SKIP]],
+  'wasm/asm-wasm-stdlib': [PASS, ['arch == arm or arch == arm64', SKIP]],
 
   # TODO(branelson): Figure out why ignition + asm->wasm fails embenchen.
   'wasm/embenchen/*': [PASS, ['ignition == True', SKIP]],
 
   # TODO(bradnelson) Fix and re-enable.
   'wasm/embenchen/copy': [FAIL],  # wrong answer
   'wasm/embenchen/box2d': [SKIP],   # hang
   'wasm/embenchen/lua_binarytrees': [SKIP],  # fails decode
   'wasm/embenchen/zlib': [SKIP],  # fails gc-stress
 
@@ skipping 603 matching lines @@
 ##############################################################################
 ['gcov_coverage', {
   # Tests taking too long.
   'array-functions-prototype-misc': [SKIP],
 
   # Stack overflow.
   'big-array-literal': [SKIP],
 }],  # 'gcov_coverage'
 
 ]