Refactor core prelude (mighty-gerbils#1160)

So that it has multiple files and it is easier to maintain and reference
parts of it.

doc/reference/dev/bootstrap.md

@@ -178,10 +178,10 @@ $ rm -rf bootstrap/*
 
 # copy the builtin ssxi module
 $ mkdir -p bootstrap/gerbil
-$ cp gerbil/prelude/builtin.ssxi.ss bootstrap/gerbil
+$ cp gerbil/builtin.ssxi.ss bootstrap/gerbil
 
 # compile the bootstrap with the current installed compiler
-$ gxc -O -d bootstrap -s -S gerbil/prelude/core.ss gerbil/runtime/{gambit,util,table,control,system,c3,mop,error,interface,hash,thread,syntax,eval,repl,loader,init}.ss gerbil/runtime.ss gerbil/expander/{common,stx,core,top,module,compile,root,stxcase}.ss gerbil/expander.ss gerbil/compiler/{base,compile,optimize-base,optimize-xform,optimize-top,optimize-spec,optimize-ann,optimize-call,optimize,driver,ssxi}.ss gerbil/compiler.ss gerbil/prelude/gambit.ss
+$ gxc -O -d bootstrap -s -S gerbil/core/{runtime,expander,sugar,mop,macro-object,match,more-sugar,more-syntax-sugar,module-sugar}.ss gerbil/core.ss gerbil/runtime/{gambit,util,table,control,system,c3,mop,error,interface,hash,thread,syntax,eval,repl,loader,init}.ss gerbil/runtime.ss gerbil/expander/{common,stx,core,top,module,compile,root,stxcase}.ss gerbil/expander.ss gerbil/compiler/{base,compile,optimize-base,optimize-xform,optimize-top,optimize-spec,optimize-ann,optimize-call,optimize,driver,ssxi}.ss gerbil/compiler.ss gerbil/gambit.ss
 ```
 
 ### Recursively Recompiling the bootstrap
@@ -195,15 +195,15 @@ bootstrap recompilation.
 ```
 $ cd src
 $ rm -rf bootstrap/*
-$ gxc -no-ssxi -O -d bootstrap -s -S gerbil/prelude/core.ss gerbil/runtime/{gambit,util,table,control,system,c3,mop,error,interface,hash,thread,syntax,eval,repl,loader,init}.ss gerbil/runtime.ss gerbil/expander/{common,stx,core,top,module,compile,root,stxcase}.ss gerbil/expander.ss gerbil/compiler/{base,compile,optimize-base,optimize-xform,optimize-top,optimize-spec,optimize-ann,optimize-call,optimize,driver,ssxi}.ss gerbil/compiler.ss gerbil/prelude/gambit.ss
+$ gxc -no-ssxi -O -d bootstrap -s -S gerbil/core/{runtime,expander,sugar,mop,macro-object,match,more-sugar,more-syntax-sugar,module-sugar}.ss gerbil/core.ss gerbil/runtime/{gambit,util,table,control,system,c3,mop,error,interface,hash,thread,syntax,eval,repl,loader,init}.ss gerbil/runtime.ss gerbil/expander/{common,stx,core,top,module,compile,root,stxcase}.ss gerbil/expander.ss gerbil/compiler/{base,compile,optimize-base,optimize-xform,optimize-top,optimize-spec,optimize-ann,optimize-call,optimize,driver,ssxi}.ss gerbil/compiler.ss gerbil/gambit.ss
 ```
 
 If you have made changes in the compiler optimizer meta and the extant
 compiler does not accept your code (or generates broken code), you may
 want to try without optimizations:
 
 ```
-$ gxc -d bootstrap -s -S gerbil/prelude/core.ss gerbil/runtime/{gambit,util,table,control,system,c3,mop,error,interface,hash,thread,syntax,eval,repl,loader,init}.ss gerbil/runtime.ss gerbil/expander/{common,stx,core,top,module,compile,root,stxcase}.ss gerbil/expander.ss gerbil/compiler/{base,compile,optimize-base,optimize-xform,optimize-top,optimize-spec,optimize-ann,optimize-call,optimize,driver,ssxi}.ss gerbil/compiler.ss gerbil/prelude/gambit.ss
+$ gxc -d bootstrap -s -S gerbil/core/{runtime,expander,sugar,mop,macro-object,match,more-sugar,more-syntax-sugar,module-sugar}.ss gerbil/core.ss gerbil/runtime/{gambit,util,table,control,system,c3,mop,error,interface,hash,thread,syntax,eval,repl,loader,init}.ss gerbil/runtime.ss gerbil/expander/{common,stx,core,top,module,compile,root,stxcase}.ss gerbil/expander.ss gerbil/compiler/{base,compile,optimize-base,optimize-xform,optimize-top,optimize-spec,optimize-ann,optimize-call,optimize,driver,ssxi}.ss gerbil/compiler.ss gerbil/gambit.ss
 ```
 
 Otherwise, you are likely violating some of the bootstrap strictures; see below.
@@ -230,8 +230,8 @@ time.
 $ cd src
 $ rm -rf bootstrap/*
 $ mkdir -p bootstrap/gerbil
-$ cp gerbil/prelude/builtin.ssxi.ss bootstrap/gerbil
-$ ../build.sh env gxc -O -d bootstrap -s -S gerbil/prelude/core.ss gerbil/runtime/{gambit,util,table,control,system,c3,mop,error,interface,hash,thread,syntax,eval,repl,loader,init}.ss gerbil/runtime.ss gerbil/expander/{common,stx,core,top,module,compile,root,stxcase}.ss gerbil/expander.ss gerbil/compiler/{base,compile,optimize-base,optimize-xform,optimize-top,optimize-spec,optimize-ann,optimize-call,optimize,driver,ssxi}.ss gerbil/compiler.ss gerbil/prelude/gambit.ss
+$ cp gerbil/builtin.ssxi.ss bootstrap/gerbil
+$ ../build.sh env gxc -O -d bootstrap -s -S gerbil/core/{runtime,expander,sugar,mop,macro-object,match,more-sugar,more-syntax-sugar,module-sugar}.ss gerbil/core.ss gerbil/runtime/{gambit,util,table,control,system,c3,mop,error,interface,hash,thread,syntax,eval,repl,loader,init}.ss gerbil/runtime.ss gerbil/expander/{common,stx,core,top,module,compile,root,stxcase}.ss gerbil/expander.ss gerbil/compiler/{base,compile,optimize-base,optimize-xform,optimize-top,optimize-spec,optimize-ann,optimize-call,optimize,driver,ssxi}.ss gerbil/compiler.ss gerbil/gambit.ss
 ```
 
 And you have a brand new recursive bootstrap you can use. From here