Fix valgrind warnings.

Fix valgrind warnings.


BUG=

Committed: https://code.google.com/p/v8/source/detail?r=13050

[Yang, 2012-11-23 15:46:20]

Explanations inline.

https://codereview.chromium.org/11418138/diff/1/src/compiler.h
File src/compiler.h (right):

https://codereview.chromium.org/11418138/diff/1/src/compiler.h#newcode296
src/compiler.h:296: INLINE(void* operator new(size_t size)) { return
Malloced::New(size); }
We use a SmartPointer to delete CompilationInfoWithZone that are allocated on
the heap, and SmartPointer uses Malloced::Delete, so here we use its counterpart
to make valgrind happy.

https://codereview.chromium.org/11418138/diff/1/src/optimizing-compiler-threa...
File src/optimizing-compiler-thread.cc (right):

https://codereview.chromium.org/11418138/diff/1/src/optimizing-compiler-threa...
src/optimizing-compiler-thread.cc:130: Handle<SharedFunctionInfo> shared =
compiler->info()->shared_info();
compiler->info() gets deallocated in InstallOptimizedCode, so access it before
this happens.

https://codereview.chromium.org/11418138/diff/1/src/optimizing-compiler-thread.h
File src/optimizing-compiler-thread.h (right):

https://codereview.chromium.org/11418138/diff/1/src/optimizing-compiler-threa...
src/optimizing-compiler-thread.h:48: thread_id_(0),
Initialize this to make valgrind happy.

[Jakob Kummerow, 2012-11-23 20:33:04]

lgtm