Unhelpful error on malformed macrolet

[James Kalenius]

Macrolet and symbol-macrolet forms with invalid definitions give you a slightly weird error:

(macrolet (foo () 'bar) nil) => The value FOO is not of type LIST.

Contrast with flet: (flet (foo () 'bar) nil) => The FLET definition spec FOO is malformed.

Throwing (loop for def in definitions unless (listp def) do (compiler-error "The definition spec ~s is malformed." def)) into src/compiler/ir1-translators.lisp#%funcall-in-foomacrolet-lexenv could be some kind of improvement. Saying whether it's macrolet or symbol-macrolet would require some more information being passed down, like FLET and LABELS end up doing.

sbcl --version => SBCL 1.1.14.debian, but it's still in git sources too.

[Stas Boukarev (stassats)]

In 755b72090b05d82f2a8c8f6ad1de5c3ddb160d75