Remove block, start work on frames.

Author: Moderocky

src/main/java/org/byteskript/skript/compiler/structure/Frame.java

@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2022 ByteSkript org (Moderocky)
+ * View the full licence information and permissions:
+ * https://github.com/Moderocky/ByteSkript/blob/master/LICENSE
+ */
+
+package org.byteskript.skript.compiler.structure;
+
+import mx.kenzie.foundation.Type;
+
+public interface Frame {
+    
+    int size();
+    
+    void add(Type... types);
+    
+    void remove(Type... types);
+    
+}

src/main/java/org/byteskript/skript/compiler/structure/PreVariable.java

@@ -6,19 +6,40 @@
 
 package org.byteskript.skript.compiler.structure;
 
+import mx.kenzie.foundation.Type;
 import mx.kenzie.foundation.WriteInstruction;
+import org.byteskript.skript.compiler.CommonTypes;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
 
 public final class PreVariable {
     private final String name;
     public boolean parameter;
     public boolean internal;
     public boolean atomic;
+    public final List<Type> insight = new ArrayList<>();
 
     public PreVariable(String name) {
         if (name == null) this.name = "EMPTY";
         else this.name = name;
     }
 
+    public boolean typeKnown() {
+        return insight.size() == 1;
+    }
+    
+    public Type getType() {
+        if (insight.size() == 1) return insight.get(0);
+        else return CommonTypes.OBJECT;
+    }
+    
+    public void addTypeInsight(Type type) {
+        this.insight.add(type);
+    }
+    
     public WriteInstruction load(final int slot) {
         return WriteInstruction.loadObject(slot);
     }

src/main/java/org/byteskript/skript/runtime/Skript.java

@@ -122,9 +122,7 @@ public Skript(SkriptThreadProvider threadProvider, ModifiableCompiler compiler,
         this.events = new HashMap<>();
         this.converters = new HashMap<>();
         skript = this;
-        if (compiler != null) {
-            this.converters.putAll(compiler.getConverters());
-        }
+        if (compiler != null) this.converters.putAll(compiler.getConverters());
     }
 
     @Description("""