Turn on strict linting in test suite.

test/helper.janet

@@ -1,5 +1,8 @@
 # Helper code for running tests
 
+# Turn on strict linting by default in test suite.
+(put root-env *lint-warn* :strict)
+
 (var num-tests-passed 0)
 (var num-tests-run 0)
 (var suite-name 0)
@@ -7,7 +10,7 @@
 (var skip-count 0)
 (var skip-n 0)
 
-(def is-verbose (os/getenv "VERBOSE"))
+(var is-verbose (os/getenv "VERBOSE"))
 
 (defn- assert-no-tail
   "Override's the default assert with some nice error handling."

test/suite-compile.janet

@@ -46,8 +46,10 @@
 # Edge case should cause old compilers to fail due to
 # if statement optimization
 # 17283241
+(setdyn *lint-warn* :relaxed)
 (var var-a 1)
 (var var-b (if false 2 (string "hello")))
+(setdyn *lint-warn* nil)
 
 (assert (= var-b "hello") "regression 1")
 

test/suite-ffi.janet

@@ -21,7 +21,7 @@
 (import ./helper :prefix "" :exit true)
 (start-suite)
 
-(def has-ffi (dyn 'ffi/native))
+(var has-ffi (dyn 'ffi/native))
 (def has-full-ffi
   (and has-ffi
        (when-let [entry (dyn 'ffi/calling-conventions)]

test/suite-filewatch.janet

@@ -24,8 +24,8 @@
 (assert true)
 
 (def chan (ev/chan 1000))
-(def is-win (or (= :mingw (os/which)) (= :windows (os/which))))
-(def is-linux (= :linux (os/which)))
+(var is-win (or (= :mingw (os/which)) (= :windows (os/which))))
+(var is-linux (= :linux (os/which)))
 
 # If not supported, exit early
 (def [supported msg] (protect (filewatch/new chan)))