remove needless library module imports in unit tests

compiler/test/codegeneration/TestArrayThings.kt

@@ -413,8 +413,6 @@ main {
     test("various array indexed assignment scenarios") {
         val src="""
 %import floats
-%import textio
-%zeropage basicsafe
 
 main {
     bool[10] barray
@@ -456,14 +454,10 @@ main {
         dump()
 
         sub dump() {
-            txt.print_bool(barray[2])
-            txt.spc()
-            txt.print_uw(warrayns[2])
-            txt.spc()
-            txt.print_uw(warray[2])
-            txt.spc()
-            txt.print_f(farray[2])
-            txt.nl()
+            bool @shared bb =  barray[2]
+            uword @shared ww = warrayns[2]
+            uword @shared ww2 = warray[2]
+            float @shared ff = farray[2]
         }
     }
 }"""

compiler/test/codegeneration/TestAsmGenSymbols.kt

@@ -197,8 +197,6 @@ main {
 
     "identifiers can have the names of cpu instructions" {
         val text="""
-%import textio
-
 nop {
     sub lda(ubyte sec) -> ubyte {
 asl:
@@ -223,13 +221,15 @@ main {
     sub start() {
         ubyte col = 10
         ubyte row = 20
-        txt.print_ub(nop.lda(42))
-        txt.nl()
-        txt.print_uw(nop.lda.asl)
+        print_ub(nop.lda(42))
+        print_uw(nop.lda.asl)
 
         void ffalse(99)
         void ftrue(99)
     }
+    
+    sub print_ub(ubyte v) {}
+    sub print_uw(uword v) {}
 }
 """
         val result = compileText(C64Target(), false, text, outputDir, writeAssembly = true)

compiler/test/codegeneration/TestLibrary.kt

@@ -19,14 +19,11 @@ class TestLibrary: FunSpec({
     val outputDir = tempdir().toPath()
 
     test("library compilation (x16)") {
-        val src="""
-%address  ${'$'}A050
-%memtop   ${'$'}C000
+        val src= $$"""
+%address  $A050
+%memtop   $C000
 %output   library
 
-%import textio
-
-
 main {
     ; Create a jump table as first thing in the library.
     uword[] @shared @nosplit jumptable = [
@@ -105,23 +102,20 @@ library {
     }
 
     test("library compilation (c64)") {
-        val src="""
-%address  ${'$'}8050
-%memtop   ${'$'}a000
+        val src= $$"""
+%address  $8050
+%memtop   $a000
 %output   library
 
-%import textio
-
-
 main {
     ; Create a jump table as first thing in the library.
     uword[] @shared @nosplit jumptable = [
         ; NOTE: the compiler has inserted a single JMP instruction at the start of the 'main' block, that jumps to the start() routine.
         ;       This is convenient because the rest of the jump table simply follows it,
         ;       making the first jump neatly be the required initialization routine for the library (initializing variables and BSS region).
-        ;       btw, ${'$'}4c = opcode for JMP.
-        ${'$'}4c00, &library.func1,
-        ${'$'}4c00, &library.func2,
+        ;       btw, $4c = opcode for JMP.
+        $4c00, &library.func1,
+        $4c00, &library.func2,
     ]
 
     sub start() {