changes in sbcl-1.2.7 relative to sbcl-1.2.6:
* optimization: returning constant values refers to preboxed constants
more reliably. (lp#1398785)
* enhancement: a STYLE-WARNING is produced if a compiler-macro is defined
for a function after at least one ordinary (not inlined) call to that
function was compiled, indicating a likely compilation order problem.
Likewise a warning ensues if a call is compiled to a function
that is subsequently proclaimed INLINE.
* enhancement: always lose() when something goes wrong while saving a core
(instead of just printing an error on stderr in some situations).
* enhancement: frames in the debugger are now restartable by default.
* bug fix: restore error handling on Windows x86.
* bug fix: MAKE-SEQUENCE detects type errors in its :INITIAL-ELEMENT
at compile-time when possible. (lp#330299)
* bug fix: parsing of malformed type specifiers no longer results
in a memory-fault-error.
* bug fix: LOOP properly destructures nested lists in WITH.
* bug fix: MACROEXPANDing the redefinition of an alien structure type no
longer signals the wrong error.
* bug fix: PROGV doesn't get confused by forced DEBUG 3 (lp#1405456).
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