[truffle] Add num to int coercion

src/vm/jvm/Truffle.nqp

@@ -700,6 +700,12 @@ class QAST::TruffleCompiler does SerializeOnce {
                 }
             }
 
+            if $desired == $INT {
+                if $got == $NUM {
+                    return TAST.new($INT, ['coerce-num-to-int', $tast.tree]);
+                }
+            }
+
             # TODO - Perl 6 proper does it differently than nqp
             if $got == $OBJ {
                 if $desired == $STR {

src/vm/jvm/runtime/org/perl6/nqp/truffle/nodes/expression/NQPCoerceNumToIntNode.java

@@ -0,0 +1,25 @@
+package org.perl6.nqp.truffle.nodes.expression;
+import com.oracle.truffle.api.frame.VirtualFrame;
+import com.oracle.truffle.api.nodes.NodeInfo;
+import org.perl6.nqp.truffle.nodes.NQPNode;
+import org.perl6.nqp.truffle.nodes.NQPStrNode;
+
+import org.perl6.nqp.truffle.runtime.Coercions;
+
+import org.perl6.nqp.dsl.Deserializer;
+
+@NodeInfo(description = "coerce an num to int")
+public final class NQPCoerceNumToIntNode extends NQPStrNode {
+    @Child private NQPNode argNode;
+
+    @Deserializer("coerce-num-to-int")
+    public NQPCoerceNumToIntNode(NQPNode argNode) {
+        this.argNode = argNode;
+    }
+
+
+    @Override
+    public long executeInt(VirtualFrame frame) {
+        return (long)argNode.executeNum(frame);
+    }
+}