cleanup warnings

BUG=
R=scheglov@google.com

Review URL: https://codereview.chromium.org//729283002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41776 260f80e4-7a28-3924-810f-c04153c831b5
When constant folding x == y take reachability of blocks into account.

This allows to constant fold phi(x, ...) == x if a single predecessor is reachable.

R=fschneider@google.com, fscheider@google.com
BUG=

Review URL: https://codereview.chromium.org//734093002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41777 260f80e4-7a28-3924-810f-c04153c831b5
add code completion cache
- generic mechanism for use in a subsequent CL
- minor get_handler import cleanup

BUG=
R=scheglov@google.com

Review URL: https://codereview.chromium.org//729193002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41778 260f80e4-7a28-3924-810f-c04153c831b5
Teach LoadOptimizer to handle intrablock multi-indirection redundancies in one pass.

Do this by renumbering loads as we move forward.

R=fschneider@google.com
BUG=

Review URL: https://codereview.chromium.org//728863005

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41779 260f80e4-7a28-3924-810f-c04153c831b5
cps-ir: Split up main codegen and add a bailout exception to print out more information.

R=floitsch@google.com

Review URL: https://codereview.chromium.org//731503002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41780 260f80e4-7a28-3924-810f-c04153c831b5
Only use fallback compiler for platform functions.

This will allow us to write tests for the compilation until we have a test setup for the full test suite.

R=floitsch@google.com

Review URL: https://codereview.chromium.org//718043004

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41781 260f80e4-7a28-3924-810f-c04153c831b5
cps-ir: Add a test for codegeneration.

This CL includes CL 723493002 and adds a test case for it.

R=floitsch@google.com, sigurdm@google.com

Review URL: https://codereview.chromium.org//733053004

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41782 260f80e4-7a28-3924-810f-c04153c831b5
Add missing file from last commit.

TBR=floitsch@google.com

Review URL: https://codereview.chromium.org//734063003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41783 260f80e4-7a28-3924-810f-c04153c831b5
Changes to our stagehand integration to use the new 'label' property.

R=pquitslund@google.com, scheglov@google.com

Review URL: https://codereview.chromium.org//723013004

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@41784 260f80e4-7a28-3924-810f-c04153c831b5