changes in sbcl-1.5.0 relative to sbcl-1.4.16:
* enhancement: SB-COVER emulates IN-PACKAGE when recording source maps;
this makes it possible to generate coverage for forms that uses local
package nicknames, or otherwise must be read in the correct package.
* build enhancement: new host quirks mechanism, support for building under
ABCL and ECL (as well as CCL, CMUCL, CLISP and SBCL itself)
* optimization: (FIND-SYMBOL x "P") for constant "P" executes faster,
subject to "P" not being a package-local nickname of any
package. Similarly INTERN. (lp#1814924)
* optimization: bounds checks are elided when possible where the same array
is dereferenced multiple times.
* bug fix: initargs are now deduplicated when computing effective slots.
* bug fix: TREE-EQUAL with :TEST 'EQL now correctly computes its answer.
(reported by Bahodir Mansurov)
* bug fix: compiled (COERCE x 'FLOAT) no longer coerces double-floats into
single-floats. (reported by J. Gareth Williams)