add debug for if

Author: liufengyun

tests/debug/if.scala

@@ -0,0 +1,20 @@
+object Test {
+
+  def main(args: Array[String]): Unit = {
+    var a = 1 + 2 // [break] [step: a + 3]
+    a = a + 3     // [step: 4 + 5]
+    a = 4 + 5     // [step: if]
+
+    if (a * 8 > 20)  // [step: 9 * 9]
+      a = 9 * 9      // [step: if] 
+    else
+      a = 34 * 23
+
+    if (a * 8 < 20)  // [step: 34 * 23]
+      a = 9 * 9     
+    else
+      a = 34 * 23    // [step: print]
+
+    print(a)
+  }
+}