tree 6a2139849648011d68f2140135fa0253db3cc92e
parent 5be1d83ed095507be9c401a7bcea61289b568266
author Goktug Gokdogan <goktug@google.com> 1462685149 -0700
committer Goktug Gokdogan <goktug@google.com> 1462685149 -0700

Removes clinits from very common core classes Boolean&Throwable.

[Boolean]
Earlier TRUE/FALSE fields were created with constructor. The constructor
requires to call clinit so TRUE/FALSE field initializations wasn't
inlined. As a result it caused TRUE/FALSE fields to be not hoistable via
constant hoisting pass; and as the fields were not hoisted; the clinit
was still required. Basically it was a chicken-egg problem. This CL uses
true/false primitives directly to initialize the fields so they are
hoisted and clinit is gone.
The Boolean.valueOf is also updated to not use the TRUE/FALSE fields to
avoid recursion in GWT (when primitive is assigned to boxed type in
TRUE/FALSE fields it would normally call Boolean.valueOf. Note that J2CL
takes the shortcut and not generates Boolean.valueOf calls).

[Throwable]
UNINITIALIZED marker object is upgraded to a compile time constant so
clinit is no longer needed.

Change-Id: Ic117889a5505f59b0e8c073e1d6523227fd921dd