Comment #2 on issue 4203 by [email protected]: Validate asm.js code and use type information
https://code.google.com/p/v8/issues/detail?id=4203#c2

The following revision refers to this bug:
https://chromium.googlesource.com/v8/v8.git/+/10f2c5c33a65a4b92fb44a7809e8e7be253264dc

commit 10f2c5c33a65a4b92fb44a7809e8e7be253264dc
Author: bradnelson <[email protected]>
Date: Mon Aug 24 17:16:38 2015

Adding visitors to regurgitate expression types or reset them.

Adding an AstExpressionVisitor to touch each expression node in
an AST.

Adding TypingReseter to clear the slate after a failed asm.js
validation that has set partial typing information.

Adding a ExpressionTypeCollector to walk the expressions
in an AST and emit them as a string for testing.

Adding tests of the above.

LOG=N
BUG= https://code.google.com/p/v8/issues/detail?id=4203
TEST=test-typing-reset,test-ast-expression-visitor
[email protected],[email protected]

Review URL: https://codereview.chromium.org/1288773007

Cr-Commit-Position: refs/heads/master@{#30336}

[modify] http://crrev.com/10f2c5c33a65a4b92fb44a7809e8e7be253264dc/BUILD.gn
[add] http://crrev.com/10f2c5c33a65a4b92fb44a7809e8e7be253264dc/src/ast-expression-visitor.cc [add] http://crrev.com/10f2c5c33a65a4b92fb44a7809e8e7be253264dc/src/ast-expression-visitor.h [add] http://crrev.com/10f2c5c33a65a4b92fb44a7809e8e7be253264dc/src/typing-reset.cc [add] http://crrev.com/10f2c5c33a65a4b92fb44a7809e8e7be253264dc/src/typing-reset.h [modify] http://crrev.com/10f2c5c33a65a4b92fb44a7809e8e7be253264dc/test/cctest/cctest.gyp [add] http://crrev.com/10f2c5c33a65a4b92fb44a7809e8e7be253264dc/test/cctest/expression-type-collector-macros.h [add] http://crrev.com/10f2c5c33a65a4b92fb44a7809e8e7be253264dc/test/cctest/expression-type-collector.cc [add] http://crrev.com/10f2c5c33a65a4b92fb44a7809e8e7be253264dc/test/cctest/expression-type-collector.h [add] http://crrev.com/10f2c5c33a65a4b92fb44a7809e8e7be253264dc/test/cctest/test-ast-expression-visitor.cc [add] http://crrev.com/10f2c5c33a65a4b92fb44a7809e8e7be253264dc/test/cctest/test-typing-reset.cc [modify] http://crrev.com/10f2c5c33a65a4b92fb44a7809e8e7be253264dc/tools/gyp/v8.gyp


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