Begin using a list of bailouts instead of a singleton in the fast code generator.

Begin using a list of bailouts instead of a singleton in the fast code generator.

A list of bailout descriptions is kept in the CompilationInfo
structure that is shared between the primary and secondary code
generators.  The primary adds a description to the list for each
bailout position.

Responsibility for binding labels is moved from the primary to the
secondary code generator. All the labels still target the start of the
secondary code and the compilation state of the primary is still
ignored.

Move the compilation mode flag to the CompilationInfo.

Committed: http://code.google.com/p/v8/source/detail?r=3920

[fschneider, 2010-02-19 14:47:14]

LGTM with comments addressed.

http://codereview.chromium.org/651031/diff/1/6
File src/compiler.h (right):

http://codereview.chromium.org/651031/diff/1/6#newcode64
src/compiler.h:64: Bailout(Register left, Register right) : left_(left),
right_(right) {}
label_ needs to be initialized here.

http://codereview.chromium.org/651031/diff/1/12
File src/ia32/fast-codegen-ia32.h (right):

http://codereview.chromium.org/651031/diff/1/12#newcode35
src/ia32/fast-codegen-ia32.h:35: #include "list.h"
list.h should be already included from compiler.h, shouldn't it?