enable compilation of tests formerly in "racket-test"; reorganize

A package like "gui" does not depend on a package like "gui-test",
which means that you have to specifically ask for a test package if
you want the tests. A new "main-distribution-test" package
aggregates the tests for packages that are in "main-distribution".

The "plt-services" package, meanwhile, depends on the
"main-distribution-test" package, which means that all tests are
compiled by default for an in-place build.

pkgs/algol60/info.rkt

@@ -1,7 +1,9 @@
 #lang info
 
 (define collection "algol60")
-(define build-deps '("racket-doc"
+(define build-deps '("at-exp-lib"
+                     "rackunit-lib"
+                     "racket-doc"
                      "scribble-doc"
                      "scribble-lib"
                      "drracket"))

pkgs/db-pkgs/db/info.rkt

@@ -1,4 +1,4 @@
 #lang info
 
 (define deps
-  '("base" "db-lib" "db-doc" "db-test"))
+  '("base" "db-lib" "db-doc"))

pkgs/deinprogramm/info.rkt

@@ -29,6 +29,7 @@
 
 (define get-textbook-pls
   '("textbook-pls-spec.rkt" textbook-pls))
-(define build-deps '("racket-doc"
+(define build-deps '("rackunit-lib"
+                     "racket-doc"
                      "at-exp-lib"
                      "scribble-lib"))

pkgs/deinprogramm/tests/run-image-test.rkt

@@ -1,6 +1,6 @@
 #lang scheme/base
 
 (require rackunit/text-ui)
-(require tests/deinprogramm/image)
+(require deinprogramm/tests/image)
 
 (run-tests all-image-tests)

pkgs/deinprogramm/tests/run-signature-tests.rkt

@@ -1,6 +1,6 @@
 #lang scheme/base
 
 (require rackunit/text-ui)
-(require tests/deinprogramm/signature)
+(require deinprogramm/tests/signature)
 
 (run-tests all-signature-tests)

pkgs/drracket-pkgs/drracket-test/tests/help/test-gui-docs-complete.rkt

@@ -0,0 +1,4 @@
+#lang racket/base
+(require rackunit/docs-complete)
+(check-docs (quote help/help))
+(check-docs (quote help/bug-report))

pkgs/eli-tester/info.rkt

@@ -0,0 +1,4 @@
+#lang info
+
+(define collection 'multi)
+(define deps '("base"))

pkgs/eopl/info.rkt

@@ -4,5 +4,6 @@
 (define deps '("base"
                "compatibility-lib"))
 (define scribblings '(("eopl.scrbl" () (teaching -20))))
-(define build-deps '("racket-doc"
+(define build-deps '("rackunit-lib"
+                     "racket-doc"
                      "scribble-lib"))

pkgs/eopl/tests/chapter1/inductive.rkt

@@ -1,5 +1,5 @@
 #lang eopl
-(require tests/eopl/private/utils)
+(require eopl/tests/private/utils)
 
 ;; in-S? : N -> Bool
 ;; usage: (in-S? n) = #t if n is in S, #f otherwise

pkgs/eopl/tests/chapter2/sec2.1.rkt

@@ -1,5 +1,5 @@
 #lang eopl
-(require tests/eopl/private/utils)
+(require eopl/tests/private/utils)
 
 (let ()
   ;; Unary Representation

pkgs/eopl/tests/chapter2/sec2.2-ds-rep.rkt

@@ -1,5 +1,5 @@
 #lang eopl
-(require tests/eopl/private/utils)
+(require eopl/tests/private/utils)
 
 ;; Simple data structure representation of environments
 ;; Page: 38

pkgs/eopl/tests/chapter2/sec2.2-proc-rep.rkt

@@ -1,5 +1,5 @@
 #lang eopl
-(require tests/eopl/private/utils)
+(require eopl/tests/private/utils)
 
 ;; Simple procedural representation of environments
 ;; Page: 40

pkgs/eopl/tests/chapter2/sec2.3.rkt

@@ -1,5 +1,5 @@
 #lang eopl
-(require tests/eopl/private/utils)
+(require eopl/tests/private/utils)
 
 ;; var-exp : Var -> Lc-exp
 (define var-exp

pkgs/eopl/tests/chapter2/sec2.4.rkt

@@ -1,5 +1,5 @@
 #lang eopl
-(require tests/eopl/private/utils)
+(require eopl/tests/private/utils)
 
 (define identifier? symbol?)
 

pkgs/eopl/tests/chapter2/sec2.5.rkt

@@ -1,5 +1,5 @@
 #lang eopl
-(require tests/eopl/private/utils)
+(require eopl/tests/private/utils)
 
 ;; data definitions
 (define identifier? symbol?)