[Tolk] Don't emit unused functions to Fift code

Drop experimental option "remove-unused-functions": it's always on now

Author: tolk-vm

tolk-tester/tests/calls-tests.tolk

@@ -179,7 +179,11 @@ fun test11(a: int, b: int) {
     return ((b < a), (b <= a), (b > a), (b >= a));
 }
 
-fun main() {}
+fun main() {
+    // mark used to codegen them
+    cmp1; cmp2; cmp3; cmp4;
+    leq1; leq2; leq3; leq4;
+}
 
 /**
 @testcase | 101 | 10      | 10 15 100 12 3 110 300

tolk-tester/tests/cells-slices.tolk

@@ -249,6 +249,7 @@ fun test18() {
   return (s.loadUint(14), s.loadInt(8), s.loadUint(4));
 }
 
+@method_id(119)
 fun test19() {
     // numbers with potential overflow for STU are not joined, check via codegen
     var b = beginCell();
@@ -267,6 +268,7 @@ fun test20() {
   return (s.loadBool(), s.loadBool(), s.loadBool(), s.loadUint(8), s.loadBool(), s.loadCoins());
 }
 
+@method_id(121)
 fun test21(s: slice) {
     // successive skipBits are also joined
     var x = 8;

tolk-tester/tests/comments-tests.tolk

@@ -18,6 +18,7 @@ fun demo_fields_def(x: int) {
 }
 
 fun main() {
+    var cb = demo_fields_def;
     return 1;
 }
 

tolk-tester/tests/generics-4.tolk

@@ -63,6 +63,7 @@ fun mySend<TBody = never, TInit = never>(p: Parameters<TBody, TInit>): int {
     return total;
 }
 
+@method_id(101)
 fun test1() {
     eqUnusedT(100);
     eqUnusedU(100);

tolk-tester/tests/indexed-access.tolk

@@ -179,6 +179,7 @@ fun getConstTuple(): Tup2Int {
     return [1,2];
 }
 
+@noinline
 fun testCodegenNoPureIndexedAccess() {
     (getConstTuple().1, getConstTuple().0) = (3, 4);
     return 0;
@@ -277,7 +278,9 @@ fun test123() {
     return t;
 }
 
-fun main(){}
+fun main(){
+    testCodegenNoPureIndexedAccess();
+}
 
 
 /**

tolk-tester/tests/intN-tests.tolk

@@ -201,6 +201,7 @@ fun test11() {
     ];
 }
 
+@method_id(112)
 fun test12() {
     var a = ton("1") + ton("2");    // check absence in fif codegen
     return ton("0.1");

tolk-tester/tests/logical-operators.tolk

@@ -1,9 +1,11 @@
 import "imports/use-dicts.ext.tolk"
 
+@method_id(90)
 fun simpleAllConst() {
     return (!0, !!0 & !false, !!!0, !1, !!1, !-1, !!-1, (!5 as int == 0) == !0, !0 == true);
 }
 
+@method_id(91)
 fun compileTimeEval1(x: int) {
     // todo now compiler doesn't understand that bool can't be equal to number other than 0/-1
     // (but understands that it can't be positive)

tolk-tester/tests/mutate-methods.tolk

@@ -307,7 +307,12 @@ fun testExplicitReturn() {
 }
 
 
-fun main(){}
+fun main(){
+    // mark used to codegen them
+    load_next;
+    testStoreUintPureUnusedResult;
+    testStoreUintImpureUnusedResult
+}
 
 /**
 @testcase | 101 |    | 70 60

tolk-tester/tests/parse-address.tolk

@@ -30,6 +30,7 @@ fun check0(addr: address) {
     assert (addr.getWorkchain() == 0) throw 111;
 }
 
+@method_id(90)
 fun codegenAddrEq(a: address, b: address) {
     if (a == b) { return 1; }
     if (a != b) { return 2; }

tolk-tester/tests/remove-unused-functions.tolk

@@ -28,8 +28,6 @@ fun main(): (int, int, int) {
 }
 
 /**
-@experimental_options remove-unused-functions
-
 @testcase | 0 | | 3 10 20
 
 @fif_codegen DECLPROC used_as_noncall1()