fixing bug in conditional creation of components inside loops

compiler/src/hir/component_preprocess.rs

@@ -16,7 +16,10 @@ fn rm_statement(stmt: &mut Statement) {
         rm_block(stmt);
     } else if stmt.is_initialization_block() {
         rm_init(stmt);
-    } else {
+    } else if stmt.is_substitution(){ 
+        rm_substitution(stmt);
+    }
+    else{
     }
 }
 
@@ -73,6 +76,15 @@ fn rm_init(stmt: &mut Statement) {
     }
 }
 
+fn rm_substitution(stmt: &mut Statement){
+    use Statement::{Block, Substitution};
+    if should_be_removed(stmt){
+        if let Substitution { meta, .. } = stmt{
+            *stmt = Block{ meta: meta.clone(), stmts: Vec::new() };
+        }
+    }
+}
+
 fn should_be_removed(stmt: &Statement) -> bool {
     use Statement::{InitializationBlock, Substitution};
     use VariableType::*;