* enhancement: GENCGC reclaims space more aggressively when objects being
allocated are a large fraction of the total available heap space.
(lp#936304)
+ * enhancement: backtraces show the correct number of arguments for frames
+ called with too many arguments.
* optimization: fewer uses of full calls to signed modular functions.
(lp#903821)
* bug fix: fixed disassembly of some SSE instructions on x86-64.